Audio, Sound, Video Burning-Tools:
  Brasero: CD/DVD Burning (Linux)
  CDBurnerXP CD-DVD Burn (Win)
  CDlabelgen Make CD/DVD Labels (Linux)
  Cdrkit: CD-DVD Burn (Linux)
  ffmpeg: Record audio/video (Linux, Mac, Win)
  Gnomebaker: CD/DVD Burning (Linux)
  Imagination: DVD Slide Show (Linux)
  IMGBurn CD-DVD Burn (Linux, Win)
  Infra Recorder CD-DVD Burn (Linux, Win)
  ISOMaster: Burner (Linux, Windows)
  Kover: Make CD/DVD Labels (Linux)
  K3B CD-DVD Burn (Linux)
  Thoggen: DVD Backup Utility (Linux)
  Toaster: CD-DVD Burner (Linux)
Audio, Sound & Video Applications:
  Basenji: Volume Indexer, CD/DVD (Linux, Win)
  Blue: Music Composition (Linux, Mac, Win)
  Campcaster: Radio Stations (Linux)
  Common Music: Composition (Linux, Win)
  DataCrow: Music Manager (Linux, Win)
  Entertainer: Video Recorder (Linux)
  FLAC: Audio (Linux, Mac, Win)
  Ionix: PCI TV Driver (Linux, Win)
  LiLyPond: Music (Linux, Mac, Win)
  Mixxx: DIJ Mixes (Linux, Mac, Win)
  Miro Video P& Audio Player (Linux, Mac, Win)
  MythTV: Digital Video Recorder (DVR) (Linux)
  ROCKbox: Firmware for mp3 (Linux, Mac, Win)
  Sound & MIDI Apps (Linux, Mac, Win)
  Timidity++  Synthesizer (Linux, Win)
  TiVO File Recorder (Linux)
  Theora: Video For Everyone (Linux)
  TuxGuitar: Guitar (Linux, Mac, Win) 
Audio, Sound & Video Editing:
  Ardour: Digital Audio (Linux, Mac, Win)
  Audacity: Sound Editor (Linux, Mac, Win)
  Avidemux: Movie Editor (Linux, Mac, Win)
  AVS Audio Converter (Win)
  AVS Sound, Video Converter/Editor (Win)
  Blender: 3D Animation (Linux, Mac, Win)
  Camtasia: Screen Recording (Mac, Win)
  Cltx: Media Production (Linux, Mac, Win)
  CMS: Multi Media (Linux)
  Dynebolic: Video Editor (Linux, Win)
  Ecasound: Audio Processing (Linux, Mac, Win)
  FFmpeg: Record Convert Video Format (Linux, Win)
  Fyre: Images & Animation (Linux)
  Gnac: Sound Audion Converter (Linux, Mac)
  Jack: Low-latency Audio (Linux)
  Jahshaka: Video Editing (Linux, Mac, Win)
  Jamin: Jack AudioMastering (Linux)
  Kazam: Screencaster (Linux)
  Kdenlive: Video Editor (Linux, Mac)
  Ktoon 2D Animation (Linux)
  Lives: Movie Editor (Linux, Mac, Win)
  LMMS: Linux Multimedia Studion (Linux, Win)
  MEncoder: Video Conversion (Linux)
  Minitunes: Another Player (Linux, Mac, Win)
  MOC: Music On Console (Linux)
  Normalizer for MP3(Linux)
  OpenMovie Editor (Linux)
  Openshot: Video Editor (Linux, Mac, Win)
  Pitivi: Movie Editor (Linux)
  PhotoFilmStrip: Create Film (Linux, Win)
  Praat Audio-Recording (Linux,Mac, Win)
  POV-Ray: 3D Graphics (Linux, Mac, Win)
  Protux: Digital Media Production (Linux)
  Qjackctl: Audio Connection Tool (Linux)
  Qtractor: Audio-MIDI Multi-Track (Linux)
  SciLab Aurora: Movie Editor (Linux, Win)
  SoX: SoundeXchange (Linux, Mac, Win)
  Sound Designer II: Legacy (Mac)
  Spotify Music Player (Linux, Mac)
  Synfig: 2D Animation (Linux, Mac, Win)
  SWFTools: Sound Tools (Linux, Win)
  Tools for Audio Editing (Linux, Mac, Win)
  Traverso: Multi-Track Record (Linux, Win)
  UbuntuStudio: Video Editor (Linux)
  VideoLAN Movie Creator (Linux, Mac, Win)
  WavePad  Audio Editor (Mac, Win)
  Xawdecode: Analog Video Capture  (Linux)
  Xiph: Utilities for Sound Video (Linux)
  XBMC: Media Player (Linux, Mac, Win)
  YafRay Ray Tracer (Linux, Mac, Win)
  Zs4: Movie Editor (Linux, Mac, Win)
Audio, Sound CD-DVD, MP3 Rippers:  
  Acripper: Ripping & Encoding (Linux)
  Bombono: DVD Authoring (Linux)
  CDParanoia: CD Extractor (Linux)
  CDRecord: Blue-Ray Recording Tools (Linux)
  Cutmp3: mp3 Editor (Linux)
  DeCSS for DVD Gallery (Linux)
  DeVede: MEncoder DVD/VCD (Linux)
  Dragon Player: Movie Player (Linux)
  DVDdecrypter (Win)
  DVDFab Decrypter (Win)
  DVD:::Rip (Linux)
  DVD Rippers (Linux, Mac, Win)
  DVDShrink: Ripper (Win)
  DVD Thoggen Ripper (Linux)
  DVDx (Win)
  DVD43: Decrypter (Win)
  Dvgrab: (Linux)
  DvX Video Player (Mac)
  DbPowerAMP Audio, MP3, CD (Win)
  EasyCD Extractor (Win)
  Exaile: Music Player (Linux)
  Foobar2000: Music Player/Tagging (Win)
  FreeDVD: Extractor (Win)
  Fluendo: MP3 Plug-In (Linux)
  Genisoimage: Creates Images (Linux)
  Glabels: Make CD/DVD Labels (Linux)
  GNUMP3d: MP3 Media (Linux, Win)
  Handbrake: DVD Ripp (Mac, Linux, Win)
  ID3-TagIt: Music Tagging (Win)
  ISO Master CD Image Editor (Linux)
  iSquint: iPod Video Converter (Mac)
  K9Copy DVD Ripper (Linux)
  LightScribe: SDK Labeling (Linux)
  Listen: Audio Player (Linux)
  MacTheRipper: DVD Ripper (Mac)
  Mediamonkey: Music Player/Tagging (Windows)
  MakeMKV: DVD-Blue-Ray RIP (Linux, Mac, Win)
  MOC Music Console (Linux)
  MP3 Rippers, Encoders (Win)
  MP3Gain: Volume Normalizer (Win)
  Mp3Tag (Win)
  Mthree: Audio, MP3 (Win)
  MusicBrainz Picard  Tagger (Linux, Mac, Win)
  OGMRIP: Ripping DVDs (Linux)
  RippedWire (Linux)
  Rockbox: Firmware for MP3 (Win)
  SMPlayer Medial Player (Linux)
  Sound-Juicer: Gnome CD Ripper (Linux)
  SyncPod: iPod MP3 Sync (Linux)
  Tuneup Tagging/Cleaning (Mac, Win)
  UnDVD Ripper (Linux)
  VLC Media-Player (Linux, Mac, Win)
  Vorbis-Tools: Audio Encoding (Linux)
  Winff: Video Converter (Linux, Win)
  XBMC Media Center (Linux, Mac, Win) 
Audio, Music & Video Players:
  Amarok: Music Player (Linux, Mac, Win)
  Apertus: Cinema (Linux, Mac, Win)
  Atunes: Audio Player (Linux, Mac, Win)
  Audacious: Music Player (Linx)
  BadfruitiTunes Plug-in (Win)
  Bangarang: Music Player (Linux)
  Banshee: Music Player (Linux)
  Beep Media Player (Linux)
  Boxee TV Medial Player (Linux, Mac, Win)
  Clementine-Player: (cf. Amarok & iPod (Linux, Mac, Win)
  CMus: Music Player (Linux)
  Coolplayer: Audio Player (Win)
  Cplay  Players (Linux)
  Cuberok: Audio Player (Linux, Mac, Win)
  DeaDBeef: Music Player (Linux)
  Decibel: Audio Player (Linux)
  Entertainer: Video Recorder (Linux)
  Exaile: Music Player (Linux)
  Flowplayer: Webplayer (Linux, Mac, Win)
  Fluendo: Video & Audio (Linux)
  Foobnix: Music Player (Linux, Mac, Win)
  GCstart: Manage Movie Collection (Linux)
  Gerequi: Amarok Clone (Linux)
  GMPC Audio Player (Linux)
  Gmusicbrowser: Jukebox (Linux)
  GnashFlash Movie Player (Linux)
  Gnome Media Player (Linux)
  Gtkpod: For iPod (Linux)
  Guayadeque Audio Player (Linux)
  Flowplayer: Web Video player (Linux, Mac, Win)
  Helix: Media Player(Linux, Mac, Win)
  Herrie: Audio Player (Linux)
  Jajuk: Advanced Juke Box (Linux, Mac, Win)
  Juk: Music Player (Linux)
  Kaffeine: Media Player (Linux)
  Kdenlive: Video Editing (Linux)
  Last.fm:  Streaming Client (Mac)
  Lightspark: Free Flash (Linux)
  Listen: Music Player (Linux)
  Miro Video Platform (Linux, Mac, Win)
  MOC Music Console (Linux)
  Moovida: Media Center (Linux, Mac, Win)
  Movix: Multimedia (Linux, Win)
  MPG123: Console Player (Linux)
  MPG321: MP3 Player (Linux)
  Mplayer: Movie Player (Linux, Mac)
  Mp3bluster: Music Player (Linux)
  Muine: Gnome Music Player (Linux)
  Noatun: Media Player (Linux)
  Openshot: Video Editor (Linux)
  OSS4: Open Sound (Linux)
  Perian: Quicktime Component (Mac)
  Plex: Media Server (Mac)
  Qmmp: Audio Player (Linux)
  Quod Libet & Ex Falso: Audio Player (Linux)
  Rosegarden: Audio, Score Editor (Linux)
  Rhythmbox: Music Player Plugggin (Linux)
  Serpentine: Audio Player (Linux)
  Sonata Audio Player (Linux)
  Streamtuner: Stream Browser (Linux)
  Subsonic Web-Based Media Streamer (Linux, Win)
  Theora: Video Compression (Linux, Mac, Win)
  VR180 Creator: Video Editor (Linux, Mac)
  Virtualdub: Video (Win)
  Vorbis: Ogg Music Player (Linux, Mac, Win)
  V4L: Video For Linux (Linux)
  VLC Media-Player (Linux, Mac, Win)
  Winamp: Audio, Video Player (Win)
  Xine: Multimedia Player (Linux)
  Xmms & Xmms-KDE audio Player (Linux)
  Yamipod: iPod App (Linux, Mac, Win)
  Zinf Audio Player (Linux, Win)
Audio Text-to-Speech:
  eSpeak: Text to Speech (Linux, Mac, Win)
  Gespeaker: Text to Speech (Linux)
  gSpeak: Text to Speech (Linux, Mac, Win) 
  Text-to-Speech (Linux)
Audio Tools:
  Audioconvert (Linux)
  ARSS: Analysis, Spectograph  (Linux, Mac, Win)
  Flac (Linux, Mac, Win)
  Ffmpeg (Linux)
  Gnormalize (Linux)
  Lame (Linux, Mac, Win)
  Miksoft Graphics, Audio (Linux, Win)
  Mplayer (Linux, Mac, Win)
  Mppdec (Linux, Mac, Win)
  Nautilus Script Soound Converter (Linux)
  Oggenc (Linux)
  Oggconvert (Linux)
  SoundConverter (Linux)
  SoundKonverter (Linux)
  Transkode: Audio Video-Converting (Linux)
  Waon (Linux, Win)
Calendar & Adress Book:
  Calcurse: Calendar (Linux)
  Calendar: (Linux, Mac, Win)
  Calizo (Linux, Win)
  Day Planner (Linux)
  Pagico: Planner (Linux, Mac, Win)
  Photo Calendar (Linux)
Collection: Hobby
  6 Collection Managers (Linux, Mac, Win)
Collection of Free Software:
  Amahi: Apps (Linux, Mac, Win)
  Bleedingedge: Install Majors Apps (Linux)
  Completely Free (Linux, Mac, Win)
  Fink Project: Excellent Selection (Mac)
  Flo's Freeware (Win)
  Freecountry Apps (Linux, Mac, Win)
  FreeDownloadCenter (Linux, Mac, Win)
  Free Downloads for Mac (Mac)
  Freeme: Free DVD (Linux)
  Free Software (Linux, Mac, Win)
  Freshmeat Projects (Linux, Mac, Win)
  Gnome Projects (Linux, Mac, Win)
  GNU-Software (Linux, Mac, Win)
  KDE-Apps (Linux)
  Launchpad: Gnome Apps (Linux)
  Linux Apps Finder (Linux, Mac)
  Linux Software (Linux)
  Linux & Win Equivalents (Linux, Mac, Win)
  Linux-Win Equivalents (Linux, Mac, Win)
  Linux Application Finder (Linux)
  List of Applications (Linux, Mac, Win)
  Mac Open Source (Mac)
  Mac OS X Public Archive (Mac)
  Mac OSX: What New? (Mac)
  Mac OSX SourceForge (Mac)
  Media Portal: Media Center
  Mono-Project (Linux, Mac, Win)
  NONAGS: Freeware (Linux, Mac, Win)
  OpenSource Directory (Linux, Mac, Win)
  Osalt: Software Directory (Linux, Mac, Win)
  Other Utilities (Linux, Win)
  Qt-Apps.org (Linux)
  Softpedia (Linux, Mac, Win)
  Sound & MIDI Apps (Linux, Mac, Win)
  SourceForge Projects (Linux, Mac, Win)
  The FreeSite (Linux, Mac, Win)
  Ultiliex: Live CD Greatest Hits (Linux)
  Apache Derby: Database (Linux, Win)
  Drizzle: Database for Cloud & Web (Linux, Win)
  Firebird, (Linux, Mac, Win)   
  Gnome-db (Linux)
  HSQLDB: Java Database (Linux, Mac, Win)
  Kexi: DataBase (Linux, Win)
  MariaDB (Linux, Mac, Win)
  MySQL (Linux, Mac, Win)
  NoSQL: Non-SQL RDBMS Database (Linux, Win)
  Oracle database (Linux, Win)
  PostGresql (Linux, Win)
  PhpMyadmin Project (Linux, Win)
  Redis: Key-Value Database (Linux)
  SQLite: A Tiny Database (Linux)
  Virtuoso: Openlink Database (Linux)
  WikindX: References Database (Linux, Mac, Win)
Enterprise (eCommerce, Business):
  Alfresco: Content Management (Linux)
  BIRT: Reporting Tolls (Linux, Mac, Win)
  Chievo: Project Management (Linux, Win)
  Daffodil: Replicator, Migration (Win)
  eHour: Time Management (Linux, Win)
  Drupal: Content Management (Win)
  GanttProject: Scheduling, Management (Linux, Mac, Win)
  Intalio: BPMS (Linux)
  Jbilling: Billing Software (Linux, Win)
  Joomla: Management (Linux, Win)
  Journyx Timesheet (Linux)
  LedgerSMB: Small Business (Linux)
  Liferay: Portal Framework (Linux, Mac, Win)
  Mediawiki: Wiki Package (Linux, Mac, Win)
  Midgard Management (Linux, Mac)
  Mirth: Health Care (Linux, Mac, Win)
  MuleSource Management (Linux)
  OpenCMS: Managment (win)
  OpenUse: Management (Linux, Win)
  OpenExchance Server (Linux)
  OpenFMG: ERP (Linux, Mac, Win)
  Open Proj: Project Management (Linux, Win)
  Plone: Management (Linux, Mac, Win)
  PostNuke: Management (Linux, Win)
  QRM: Management Platform(Linux, Mac, Win)
  Simple-Groupware & CMS (Linux)
  SQL-Ledger (Linux)
  STP BPMN Modeler Viewe (Linux, Win)
  Tickets: Computer Aided Dispatch (Linux, Win)
  Typo3: Managment (Linux, Win)
  vtiger: CRM in the Cloud (Linux, Mac, Win)
  Wyona: Management (Linux, Win)
  Zen Cart: Business, Commerce (Linux, Mac, Win)
  Zope: Management (Linux, Win)
Finances, Accounting (Personal Budget):
  BambooInvoice: Invovicing (Linux, Mac, Win) 
  Buddi: Personal (Linux, Mac, Win)
  GNU Accounting (Linux, Win)
  Gnucash: Personal (Linux, Mac, Win) 
  Grisbi: Personal (Linux, Mac, Win)
  Money Manager Ex Personal (Linux, Win)
  Open Workbench Management (Win)
  Skrooge Personal Finiance (Linux)
  SQL-Edger Accounting/ERP (Linux, Mac, Win)
Food & Drinks:
  Kegbot: Monitor Beer Kegs (Linux)
  Qbrew: Brew Recipe (Linux, Mac, Win)
iPod/iPhone Applications:
  Doug's Apple Scripts for itunes (Mac)
  Floola: iPod Manager (Linux, Mac, Win)
  iPodDisk Copy Music Off iPod(Mac)
  iPod Linux (Linux)
  iPod Linux Installer (Linux)
  iPodder: Utilities (Linux, Win)
  iTiVo: Downd Load Shows (Mac)
  Libimobiledevice: Connect iPhone, iPod (Linux)
  Mediamonkey: Music Player/Tagging (Windows)
  PwnageTool: iP(od)hone Accesory (Mac)
  RockBox: Same as iTunes (Win)
  Senuti Save iPod in Hard Drive (Mac)
  SyncPod: iPod MP3 Sync (Linux)
  Yamipod: iPod App (Linux, Mac, Win)
Medical & Health:
  Epiinfo: Statistical APP (Linux, Mac, Win)
  FreeMed (Linux, Mac, Win)
  Medfloss:  Various Medical Apps (Linux, Mac, Win)
  OEMR: Medical Practice (Linux, Win)
  OpenEHR (Linux, Mac, Win)
  OpenMRS (Linux, Mac, Win)
  OpenClinica: Medical (Linux, Win)
  Worldvista: Health Information System (Linux, Win)
PDF: Create & Read PDF Files:
  Combine PDF (Mac)
  doPDF: Create, Convert, doPDF (Win)
  Evince: PDF Viewer (Linux)
  Final Page: Post Production (Linux)
  Formulatepro: PDF Editor (Mac)
  GhostView: PDF View (Linux, Mac, Win)
  Ghostscript: PDF View (Linux, Mac, Win)
  gImageReader: Extract Text from PDF (Linux, Mac)
  GSView: PDF View (Linux, Mac, Win)
  ICEpdf: Java PDF (Linux, Mac, Win)
  Jarnal: Notetaker, PDF Annotator (Linux, Mac, Win)
  List of PDF Editing Tools (Linux, Mac, Win)
  MacGSView: PDF View (Linux, Mac, Win)
  Master PDF Editor (Linux, Mac, Win)
  Okular: Document Viewer (Linux)
  Pandoc: Universal Converter (Linux, Mac, Win)
  PDF Arranger (Linux)
  PDF Readers & Creators (Linux, Mac, Win)
  PDFedit: Edit PDFs (Linux)
  PDF Extension For OpenOffice (Linux, Mac, Win)
  PDF Mix Tool (Linux)
  PDFRead (Linux, Mac, Win)
  PDFsam: Split & Mege (Linux, Win)
  PDF software (Linux, Mac, Win)
  PDFTK:  Build, Join, Split, Rotate (Linux, Mac, Win)
  PDF-Xchange Viewer (Win)
  PoDoFo: PDF Libraries (Linux, Mac, Win)
  QPDF: PDF-PDF, Transformations (Linux, Mac, Win)
  Scribus Publishing (Linux, Mac, Win)
  Sun PDF Import (Linux, Mac, Win)
  Sumatra: PDF viewer (Win)
  SWFTools: Text Tools (Linux, Win)
  Xournal: Note Taker PDF Annotator (Linux, Mac, Win)
  Win2PDF: PDF Creator (Win)
Xpdf: PDF Reader (Linux, Win)
Podcasting Tools:
  Podcasting Clients (Linux, Mac, Win)
Portable Applications:
  AbiWord: Word Processing (Win)
  Apache OpenOffice: Word Processing (Win)
  Firefox Browser (Win)
  Gimp: Graphics (Win)
  Libreoffice: Word Processing (Win)
  Portable Apps (Win)
  Sumatra: PDF viewer (Win)
  Thunderbird: Email (Win) 
  7-Zip Compression (Win)
Radio Stations:
  Campcaster: for Radio Stations (Linux)
  IceCast: Webradio Software (Linux, Win)
  Odio: Radio App (Linux, Mac, Win)
  SHOUTcaster: Free Internet Radio (Linux)
  PyPianobar: Radio App (Linux)
  BibleTime (Linux)
  CrossWire Bible (Linux, Mac, Win)
  GnomeSword (Linux) 
  Sword (Linux, Mac, Win)
  Gnumeric Spreadsheet (Linux, Mac, Win)
  Kexi: Spreadsheet (Linux, Mac, Win)
  Oleo: Spreadsheet (Linux) 
Speech Recognition:
  Simon: Speech Recogniton Software (Linux, Win)
  Speech Recognition Tools (Linux, Mac, Win)
System Booting & Partitioning:
  Bootchart: Tool for Performance (Linux)
  BootPart: Boot Partition (Win)
  Clonezilla: Clone/backup/imaging (Linux)
  DiskInternal: Access Windows (Linux)
  Explore2FS: Access EXT2-3 Files (Linux, Win)
  Ext2: Installable File System (Win)
  Ext2Fsd: Ext2/Ext3 File System Driver (Win)
  FOG: Clonning Solution (Linux, Win)
  Installable File System: Linux EXT2 Access (Win)
  Ghost: partitioning Imaging (Linux)
  Gparted: Partition Editor (Linux)
  Grup-Customizer: Booting Order (Linux)
  Lubi,  LVPM, Unetbootin, Bubakup:  Installers  (Linux, Win)
  MultiCD: Multi-CD Boot (Linux, Mac, Win)
  Partimage: Partioning! (Linux)
  Partitioning & Utilities (Linux)
  Partitioning & Management (Win)
  PhotoRec: File Data Recovery (Linux, Mac, Win)
  rEFIT; Linux on Mac (Mac)
  rfsd: Access RiserFs (Win)
  Smartmontools: Control Storage (Linux, Mac)
  SuperGrub: Partitionin(Linux, Win)
  UNetbootin: Create Bootable Live USB (Linux, Mac, Win) 
System Rescue, Recovery:
  Autopsy (Linux)
  BartPE Rescue Disk & Portable (Linux, Win)
  Bootchart: Tool for Performance (Linux)
  Collection of Rescue CDs (Linux)
  Clonezilla: Clone & Partitioning (Linux, Mac, Win)
  DdRescue (Linux)
  Dd_Rescue (Linux)
  Ddr_Help (Linux)
  Diskdigger (Win)
  Foremost: Data Recovery (Linux)
  GetDataBack for FAT (Win)
  GImagex: Restore Tool (Win)
  G4L: Partition Imaging, Cloning (Linux)
  Helix Rescue (Linux)
  IsoBuster (Linux, Win)
  Likeview (Linux, Win)
  Macrium Reflect (Win)
  Magic Rescue: Undelete (Linux)
  Magic SysRq: Recovery (Linux,
  Mondo Rescue: Recovery Solution (Linux)
  Other Rescuers (Linux, Mac, Win)
  Parted Magic: Recover (Linux)
  PhotoRec (Linux, Mac, Win)
  PING: Backup, Restore (Linux, Win)
  Recuva (Linux, Win)
  Scalpel (Linux)
  Sleuth Kit (Linux)
  Smartmontools: Control Storage (Linux, Mac)
  Snapback: Backup Restore (Mac)
  System RescueCD (Linux, Win)
  TestDisk  Rescue (Linux, Mac, Win)
Telemarketing: Annoying Sofware:
  Asterisk: Telephone System (Linux)
  VoiceRD: Asterisk Systems (Linux)
  1Bizcom: Asterisk Voip Call (Linux)
Television, Audio, Video:
  Freetuxtv: TV watch, Record (Linux)
  Ionix: PCI TV Driver (Linux, Win)
  Miro TV Video Platform (Linux, Mac, Win)
  MythTV: Digital Video Recorder (DVR) (Linux)
  TiVO File Recorder (Linux)
  TV-Browser (Linux, Mac, Win)
  Agedu: Manage Disk Usage (Linux)
  Ailurus: Aplication Tweak Installer (Linux)
  Ardesia: Turn Computer into Sketchpad (Linux, Mac, Win)
  Autokey Automation (Linux)
  Autohotkey (Linux)
  AutoPackage (Linux)
  Avahi: Service Discovery Network (Linux) 
  BasPodder: Utilities (Linux)
  Bash Shell (Linux)
  Battery Status (Linux)
  Belarc Advisor: PC Audit (Win)
  Best of the Best: Hive Five (Linux, Mac, Win)
  Bleachbit: Free Spave, Remove, Guards (Linux, Win)
  Boinc: Volunteer and Grid Computing (Linux, Mc, Win)
  Bumblebee: Battery Drain Tool (Linux)
  BusyBox: Utilities (Linux)
  CfEngine: Autonomic Maintenance (Linux)
  Checkinstall: Package Management (Linux)
  Clix Command View (Mac)
  Collabtive: Collaborative Software (Linux)
  Computer-Janitor (Linux)
  Conky: Ligh-weight System Monitor (Linux)
  Convert .deb Package: i386 to lpia (Linux)
  CPU Usage Limiter (Linux)
  Cygwin: Linux  Command Tools (Win)
  Dashquit: Quit Dashboard Widgets (Mac)  
  Deskbar Applet (Linux) 
  Debian to lpia Package Converter (Linux)
  Display Link LGPL Library: USB (Linux)
  Do Gnome Alternatives (Linux)
  DupeCheck: Find Duplicate Files  (Mac)
  DupeGuru: Find Duplicate Files (Mac)
  Duplicate File Searcher (Mac, Win)
  eGroupWare Maintainance (Win)
  Ejecter: Unmount Peripherals (Linux)
  EmptyFolderNuker: Delete Empty Folders (Win)
  Enomaly: Cloud Computing (Linux, Mac, Win)
  Envy: Graphic Card Detector (Linux) 
  Ftimes: Tool Collection (Win)
  FUSE: FileSystem In User Space (Linux)
  gDesklets & Screenlets Widgets (Linux)
  Gbirthday: Birthday Applications (Linux)
  Giggle: Git Content Tracker (Linux)
  GKrellm: System Monitor (Linux)
  Glipper: Gnome Clipboard (Linux)
  Git (Linux, Mac, Win)
  Git: Control Utilities (Linux, Mac, Win)
  Gnome Do (cf. Quicksilver) Quick Search (Linux)
  Gnotime: Time Tracker (Linux)
  Gnome Nanny: Parental Control (Linux)
  GNU Screen (Linux)
  Gnustow: Managing Installation (Linux)
  GnuWin: Gnu Unix Utilities (Win)
  Granola: Power Saving App (Linux, Mac, Win)
  Grep: Loading, Searching (Linux, Mac, Win)
  Growl: Notification System (Mac)
  Gsmart: Hard Drive Inspection Tool(Linux, Mac, Win)
  Hardinfo: System Profiler (Linux)
  HPC4U: Clusters for Grid (Linux)
  HPLIP: Printing & Imaging (Linux)
  iFixit: Various Utils (Linux, Mac, Win)
  IronAHK Key Automation(Linux)
  Jupiter: Power & Hardware Control (Linux)
  Keryx: Intenetless Linux Updater (Linux)
  Keytouch: Key Short Cuts (Linux)
  Klipper: KDE Clipboard (Linux)
  Kornelix: Utilities (Linux)
  Kpathsea: Path Searching Lib (Linux)
  KSplice: Rebootless Utility (Linux)
  Kupfer (cf. Gnome Do) (Linux)
  Lesswats: Power Management (Linux)
  Libreplan: Webplanning (Linux)
  Linux Apps Finder (Linux, Mac)
  LTSP: Thin Client (Linux)
  MacFuse: File System Userspace (Linux, Mac)
  Mac4Lin:  Linux to OSX (Linux)
  MacPorts: Utilities (Mac)
  MacUpdate (Mac)
  Mono Project Utils (Linux, Mac, Win)
  OpenCart (Linux, Mac, Win)
  OpenLogic: Search Installed Software (Linux, Win)
  Openproj: Project Management(Linux, Mac, Win)
  PowerTop: Increase Battery Life  (Linux)
  PPA-PurgeDowngrade Ubuntu (Linux)
  Preload: Speed Up System (Linux)
  Puppet: Aautomating System Admin (Linux) 
  Quicksilver (cf. Gnome Do) Data Manipulator (Mac)
  Raccoon APK Downloader (Linux, Mac, Win)
  Rachota: Time-Tracker (Linux,  Mac, Win)
  RunAsdate: Run Program with Specified Date (Win)
  RCDefault Set Default Programs (Mac)
  Referencer: Organize Reference (Linux)  
  Reiser: System Utility (Linux)
  Scratch: Fun Utilities (Linux)
  Screenlets & gDesklets Widgets (Linux)
  Scripts, Programs, One-Lineers (Linux)
  SearchMonkey: Search (Linux)
  Simple Screen Recorder (Linux)
  Socat: Multipurpose Relay (Linux)
  Sportstracker: Monitor (Linux Mac, Win)
  SpringSource: Java Infrastructure (Linux, Mac, Win)
  StartupDelayer: Speed Up startup (Win)
  Svgalib: Sper VGA Graphics Library (Linux)
  Synaptic: Package Management (Linux)
  Synergy: Share Mouse & Keyboard (Linux, Mac, Win)
  Synergy-Plus: Mouse & Keyboard (Linux, Mac, Win)
  Syslog-ng: Logging Tool (Linux)
  Talend: Data Management (Linux, Win)
  TestDriven: .NET related (Win)
  Timetracker (Linux)
  TuxOnIce: Hibernate Functionality (Linux)
  Ubcleaner: Computer Cleaner (Linux)
  Ubuntu-Tweak: Config Ubuntu Utility (Linux)
  Ubuntu-One: Multi-Purpose Software (Linux)
  UNetbootin: Create Bootable USB (Linux, Mac, Win)
  Unison: File Synchronizer (Linux, Mac, Win)
  UnxUtils: Gnu Unix Utilities (Win)
  Urpkg Package Management (Linux)
  Vanity: Delete Empty Folders (Win)
  Winzig: PIM Suite (Linux, Mac, Win)  
  Wubi: Linux Installers for Windows (Win)
  XAMPP: Utility Tools (Linux, Mac, Win)
  XBindKeys: Utils (Linux)
  Xnee: Automator (Linux)
  X.org Window System (Mac)
  Zenoss: System Monitoring (Linux, Mac ,Win)
Utilities: Backup:
  Amanda: Network Solutions (Linux)
  Areca: Personal Backup (Linux, Win)
  Back In Time (Linux)
  BackerUpper (cf. Time Machine) Backup  (Linux)
  BackupPC (Linux, Mac, Win)
  Bacula: Network Backup (Linux, Win)
  Boxbackup: Online-Backup (Linux)
  Carbon Copy Cloner (Mac)
  Conduit: Syncronize Files (Linux)
  Confinity: Configure Unity (Linux)
  Cronopete: Time Machine Clone (Linux)
  Ddrescue: Data Recovery Tool (Linux)
  Déjá Dup: Backup (Linux, Mac)
  DriveImage: Backup (Win)
  Dump: Backup, Restore (Linux)
  Ezbackitup (Win)
  FBBackup (Win)
  FEBE: Firefox Backup (Linux, Mac, Win)
  Flyback  (cf. Time Machine) (Linux)
  FWBackups: (Linux)
  Hamster: Track Your Time (Linux)
  IBAM: Manager Monitor (Linux)
  Kpowersave: Power Utility Linux)
  LBackup (Mac)
  LinuxDefender Windows NTFS Rescuer (Win)
  Lubi,  LVPM, Unetbootin, Bubakup,  Installers  (Linux, Win)
  Luckybackup: Reliable Backup & Sync Tool (Linux)  
  Mephisto Backup (Linux)
  Mondorescue: Data Recovery (Linux)
  MrClean: Delete Empty Folders, Duplicates (Mac)
  Multitail: Follow Multiple Files (Linux)
  Mylvmbackup: Backup (Linux)
  Paragon: Backup (Win)
  Partimage: Backup (Linux)
  PING: Backup, Restore (Linux, Win)
  Photorec: Photo Recovery (Linux, Mac, Win)
  Pybackpack: Backup Manager (Linux)
  RDiff Backup (Linux, Mac, Win)
  Redo Backup (Linux)
  RSIBreak: Prevent Repetitive Strain Injury (Linux)
  Rsnapshot: Snapshot Utility (Linux, Win)
  RsyncSnapshot: Backup  (Linux)
  SBackup: Backup (Linux)
  Safecopy: Data Recovery (Linux, Mac, Win)
  Simple Backup (Llinux)
  SimpleLinux: Backup (Linux)
  Snap Backup (Linux, Mac, Win)
  SystemRescueCD (Linux)
  Testdisk: Data Recovery (Linux, Mac, Win)
  TestDisk & Photo Rec: Data Recover (Linux, Mac, Win)
  Thoggen: DVD Backup Utility (Linux)
  Truecrypt Software (Linux, Mac, Win)
  Zmanda Backup (Linux)
  13 Backup Solutions (Linux, Mac, Win)
Utilities: Kernel Compilation
  KernelCheck: Compiles, Checks Kernel (Linux)
  Ksplice: Kernel Rebooting, Updates (Linux)
Utilities: Personal Collection Organizer:
  GCstar: Organizer (Linux, Mac, Win)
  MyTinyTodo: Personal Organizer (Linux, Mac, Win)
Utilities: Printing Drivers:
  Openprinting Drivers (Linux, Mac)
  PrintFab Drivers (Mac)
  TurboPrint Drivers (Linux)  
Utilities: Screen-File Managers:
  Afterstep: Window Manager (Linux)
  Automatix: Graphical Manager (Linxu)
  Avant Window Navigator (cf. Dock) (Linux)
  AWN Lucido: Window Navigator (Linux)
  Bluetile: Window Manager (Linux)
  Cairo-Dock: Animated Dock (Linux)
  Catfish: Search Tool (Win)
  Crunchbang Window Manager (Linux)
  Desktop Switcher: REMIX (Linux)
  Devil's Pie: Window-Matching (Linux)
  DFM: File Manager (Linux)
  Docky: Launch Pad (Linux)
  Dolphin For KDE (Linux)
  DWM: Window Manager (Linux)
  emelFM: File Manager (Linux)
  Enlightment Window Manager (Linux)
  EveryDesk: LinuxDesktop (Linux)
  Evtouch: Screen-touch (Linux)
  EXT2 File System (Win)
  FDclone: File Manager (Linux)
  FileRunner (Linux)
  FluxBox: Window Manager (Linux)
  Global Menu (Linux)
  Gnome-Do: Animated Dock (Linux)
  GNU Screen: Screen Manager (Linux)
  Grenshot: Screen Capture (Linux, Win)
  Hulu Desktop: Free Movies, Music (Linux)
  Istanbul: Desktop Recorder (Linux)
  i3: Window Manager (Linux)
  Konqueror: KDE Manager (Linux)
  Krusader For KDE (Linux)
  Ksnapshot: Screenshot Capture (Linux)
  Kupfer: Speed Everything Utility (Linux)
  KXDocker: OS X Docker (Linux)
  JWM: Window Manager (Linux)
  Lancelot: KDE-Menu, Launcher (Linux)
  Midnight Comand: File Manager (Linux)
  MultiTail: Create Multi Windows (Linux)
  Nautilus File Manager For Gnome (Linux)
  OpenBox: Window Manager (Linux)
  PCMFM: File Manager (Linux)
  Quicksilver: Launcher Graphical Shell (Linux, Mac)
  Rad Menu: Adds Radia Menus (Linux)
  Ratpoison: Window Manager (Linux)
  Record Desktop Tools (Linux)
  Recordmydesktop (Linux)
  RestoreGnome: Original Setup (Linux)
  Screen Capture tools (Linux)
  Shutter: Screenshot Utility (Linux)
  SqlDesktop: File Organizer (Linux, Win)
  UbuntuStart: Lucid Lynx (Linux)
  Terminator: Create Multiple Terminals (Linux)
  Thunar for Xfce (Linux)
  TkDesk: Graphical File Manager (Linux)
  Vifm: Vi-Based File Manager (Linux)
  Window Managers for X (Linux)
  Worker: File Manaer (Linux)
  Xfe: File Manager (Linux)
  Xmonad: X11 (Linux)
  Xvidcap: Record My Desktop (Linux)
  Window Maker: Window Manager (Linux)
  Wink: Screen Capture (Linux, Win)
  ZScreen: Screen Capture (Win)
Virtual Machine Emulators:
  Amigaforever: Emulator (Linux, Win)
  Amikit: Amiga Emulator (Linux, Win)
  andLinux: Run Linux On PC (Win)
  Android emulator (Linx, Mac, Win)
  Bochs: PC Emulator (Linux, Win)
  Cedega: Transgaming (Linux)
  Cygwin: Linux Emulator (Win)
  Darwine (cf. Winebottler; Wine) Windows  Emulator (Mac)
  DOSBox: Dos Emulator (Linux, Mac, Win)
  Fink: Linux & Unix to Mac (Mac)
  FreeDos (Dos)
  Guake: Terminal Emulator (Linux)
  Hercules Emulator: IBM Main Frame (Linux, Mac, Win)
  Javascript Emulator (Linux, Mac, Win)
  Konsole: Terminal Emulator
  Lguest: HyperVisor X86 (Linux)
  Mac On_Linux: Linux Emulator (Mac)
  Mini_vMac: Mac Emulator (Linux, Win)
  OpenVZ: OS virtualization (Linux)
  Parrot: For Dynamic Languages (Linux, Mac, Win)
  PearPC: Emulator (Linux, Mac, Win)
  PlayonLinux: Windows Emulator (Linux)
  PlayonMac: Windows Emulator (Mac)
  Prototype/Wubi:Run Linux on Win (Win)
  QUEMU: Run Linux or Win on (Mac)
  Snes9x Nintendo Emulator (Linux, Mac, Win)
  VirtualBox: Virtualization (Linux, Mac, Win)
  Virtual Network: Remote (Linux, Win)
  Virtualwin: Virtual Windows Desktop (Win)
  VMware Server (Linux, Mac, Win)
  Wine: Windows Emulator (Linux, Mac)
  Winebottler, Darwine: (cf. Wine) Windows Emulator (Mac)
  WineTools: Windows Emulator (Linux)
  Wubi/Prototype Run Linux on Win (Win)  
  Xen Virtual Server (Linux, Win)
  Zsnes: Nintendo Emulator (Linux, Win)