Royalty free music

Where do you find royalty-free music to use in a presentation?
A list of websites where you can find royalty free music. Always read the terms and conditions of the site concerning the rights to use. Would you like to distribute your presentations via YouTube, be aware of the restrictions for the use ofthe  music (including royalty free music) and make sure the settings of your movie are displayed correctly.

For free:
Freesound

Free music archive

Audionautix

Vimeo music store

Incomptech

Jamendo

CC mixter

Stonewashed

Not for free:

Tribeofnoise

RoyaltyFreeMusic
RoyaltyFreeTV

NEO sounds