Youtube-DJ - Mix YouTube songs together
Wonder.fm - Discover new music. New site by We Are Hunted co-founder.
Pacemaker - Create and share mixtapes with friends
CLiGGO MUSIC - CLiGGO MUSIC provides free music enjoyment on your pc, smart phone or tablet.
djay Pro for iPad - djay Pro provides a complete toolkit for performing DJs.
avant.fm - Avant.fm provides a customizable, listenable feed of new releases from the best indie record labels, across all genres.