Audio

iTunes, iPod, MP3, AAC, record

Internet Utilities

P2P, FTP client, Instant Message, Email, Phone SMS

Business

fax, calendar, invoice, billing, project management

Math/Scientific

calculator, unit convert, astronomy, medical, statistics

Developer Tools

Realbasic, AppleScript, API, IDE, SQL, PHP

Multimedia

DivX, VCD, DVD, MPEG, QuickTime, WebCam

Drivers

scanner, camera, mouse, printer, video card

Networking/Administrator

Firewall, VPN, Admin Tools, UNIX

DTP/Prepress

Quark, InDesign, pdf, postscript, Tex

Screensavers

ScreenSavers with passwords, slideshows, movies

Educational

genealogy, grade, teacher, dictionary, spell

Security

password manage, virus, encryption, surveillance, Shred

Finance

bills, mortgage, stock, loan, tax

System Utilities

repair, customize, optimize, syncronize, backup

Font Tools

font convert, font repair, font manage

Utilities

Everything else

Games

adventure, shooter, rpg, flight, card game

Widgets

Tiger Dashboard Widgets

Graphics

Photoshop, image convert, iphoto, icon, CAD, 3D

Word Processing/Text Tools

word processor, text editor, Diaries, NotePad, spell check

HTML Tools

xhtml, css, flash, xml, blogging tools, photo/image galleries

Beta

software that's in a development stage; beta software can be commercial, shareware or freeware

Freeware

free software you can download and use at no cost

Commercial

commercial demo or upgrade requiring a fee (major release)

Shareware

low cost software typically $5-$35 you can download and try out

Update

commercial update (free minor or bugfix release)