Complex sentence: Audiogalaxy's stated mission was to facilitate sharing of music, though it was also notable for its strong community due to such features as chat-enabled groups and per-artist internet forums.
Split into simpler sentences: Audiogalaxy's stated mission was to facilitate sharing of music, though much more appears to have grown from its legacy. It was notable for its strong community due to such features as chat-enabled groups and per-artist internet forums.