Royalty free sounds and music
Music
AudioMicro – Large collection of Royalty free music & sound effects
Free Music Archive
FreePD.com – Public Domain Music Downloads
freesound.org is a collaborative database of Creative Commons Licensed sounds.
Give Life Back to Music
iCompositions is a community for aspiring musicians
incompetech.com (Kevin MacLeod)
Jamendo 55000+ royalty-free albums
musopen Classical music
SoundCloud
TeknoAXE complete with permission form ready to send to YouTube!
Sounds
AudioMicro – Large collection of Royalty free music & sound effects
Freesound is a collaborative database of Creative Commons Licensed sounds.