Royalty Free Music Resources

Audio Jungle
http://audiojungle.net/

Neo Sounds
https://www.neosounds.com/

Premium Beat
http://www.premiumbeat.com/

Audio Network
http://www.audionetwork.com/

Free Sound
https://www.freesound.org/

Sound Bible
http://soundbible.com/

Pond 5
http://www.pond5.com/music/1/*.html

Flashkit
http://www.flashkit.com/soundfx/

FreeSFX
http://www.freesfx.co.uk/