DeviantArt - deviantART was created to entertain, inspire, and empower the artist in all of us.
Behance - The Creative Professional Platform.
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Looperman - Free loops, beats, samples, sounds, acapellas, vocals, vsti plugins audio tutorials, upload download tracks, friendly and active community, updated daily
Logamp - Share your creation such as music, art and literature. Get sharing, it's free.