This is according to laptoplogic.com:
Linux is quickly gaining popularity, but there are still many users afraid to convert as they are not familiar with the applications.
Application categories are things such as Animation and Audio Software, Graphics and Video Software, Office and Internet Software and Utilities.
They forgot to provide links to these apps so I will add some here:
Blender 3D: animation program
Pencil (2D): 2D animation program
KPovModeler: modeling program
Stopmotion: stopmotion program
Synfig (2D): 2D animation software package
Anime Studio 5 (2D)($199.99): commercial application for creating 2D animations
Audio CD Extractor (ripper): CD ripper
Audacity (recorder): free digital audio recorder/editor
Sound Converter: converts audio to mp3, wav, flac, or ogg.
Last Exit (player): standalone player for Last.fm
Hipo iPod Management Tool: iPod Management Tool
Utube-Ripper: download and save either the entire video, or the audio only, for youtube.
Freqtweak: real time audio spectral manipulation and display.
VLC: popular video player on any operating system.
AcidRip: tool for copying a DVD to a digital video file
Avidemux: video editing application.
DVD::RIP: convert an ISO or VOB files.
Gnome Subtitles: Edit, add, and manipulate subtitles
iriverter: convert videos for a wide array of portable video devices
Wink: create video screencasts
XBMC Media Center: media center for multiple platforms
GIMP: Similar to Adobe Photoshop. gtk = Gimp's the King
Hugin: panorama maker.
FlickrUploader: upload your images to your Flickr account.
Inkscape: Similar to Adobe Illustrator.
Phatch Photo Batch Processor: batch processor for photos
QCaD: to autoCAD
xPDF: suite of PDF tools
AbiWord: word processor
OpenOffice Writer: word processor
OpenOffice Spreadsheet: Similar to MS Excel.
OpenOffice Presentation: Similar to MS PowerPoint.
OpenOffice Impress: Similar to MS Publisher.
KAddressBook: personal contacts/address manager.
KOrganizer: calendar and scheduling app
GnuCash: finance management software
xCHM: CHM HTML file viewer
GPSDrive: designed to work with a GPS receiver.
Gnome Partition Editor:
Virtual Box OSE: virtual machine application
ClamAV: anti-virus software app for Linux
Gmount-ISO: easily mount a DVD or CD ISO image.
Opera: web browser.
Mozilla Firefox: web browser.
Thunderbird: email client
SeaMonkey: based on Firefox Internet browser
Evolution:email client
Pidgin IM: instant messaging client
gFTP: file transfer protocol app
