DeviantArt - deviantART was created to entertain, inspire, and empower the artist in all of us.
DemoDrop - DemoDrop is a music platform that helps young music producers and artists to promote their music...
Spotify - Map shows when two people play same song at same time
SongBox - The smart way to share music privately
SoundCloud - Enjoy music & follow favourite artists
pixiv - pixiv is an illustration community service where you can post and enjoy creative work. A large variety of work is uploaded, and user-organized contests are frequently held as well.