ArtPromote: Art & Culture Online 34 databases [some international] of free licensable images
Digital Media Repository
NASA Multimedia Collection
Free Retro Ringtones
Free-Loops.com
Kids Know It Network: Totally free Children's Learning Network
Public Domain Sounds
Online Books Page: Over 20,000 free Books on the Web
Project Gutenberg: Over 15,000 free eBooks
Royalty Free Pictures
Royalty Free Music
Shakespeare Online
SoundBible.com
Ultimate Guide to Finding Fantastic Fonts
Web Gallery of Art