Make music using the free-to-use audio and video materials from the Library of Congress
Citizen DJ (beta)
Free Music Archive
This site offers both free (CC licensed) and royalty free (pay once for use right) music.
Anilyzer
Tool for analyzing on-line videos. Allow you to step through animation / video frame by frame. Works with most YouTube and Vimeo videos.
Maya Basics: Project, Shortcuts
Maya interface basics, shortcuts