I discovered tons of really great music from artists that would never find mainstream release. Even a lot of the 'garage bands' had chops and production values that far surpassed common mainstream music. A shame, really, especially since mp3.com was essentially taken over and sunk by major labels. Still, the cat was out of the bag, people began to look beyond major label cruft and go after independent music and artists. The popularity of iTunes and the fact that they carry independents brought that variety to the masses.

Vive la revolucion!