Icons, 48x48 images for your groups or for programmers.
CD, Music CD Icon
Frank Zappa, Profile from Yellow Shark
Gameboy
Games, Files Icon with Games on each of the spines
Mac OS, Logo
Manuals, taken from word app
Modem
Mulder Scully
Newsletters
MS Outlook Icon
Nice little OPL Logo
Padd or Star Trek fame
Psion Folder, windows folder with Psion logo
SSD
Utils, like games above
Web, taken from S5's default hompage
Exclamation
HTML Document Icon
Notepad Icon
Question Mark