A moderator on the Neowin forums maintains an obsessive list of freeware to get just about everything done, from 3D graphics and antivirus software to RSS readers and video players. Need a free defrag program? Try DRMS or Buzzsaw. Want to run an FTP server? Try Cerberus. You get the idea. Most of it is for Windows, though some is cross-platform. Definitely worth bookmarking.

[Via Digg]