Feedback-wise, you might want to look into more flexible search for non-standard letters. Concrete example, "Tiesto" returns no results, but "Tiësto" returns seven. I have a feeling most people are not going to take the effort to find an umlauted e and will just assume you don't have any of his mixes.

This is way beyond essential mixes . . . I haven't come across one good dj mix sharing website out there.

Linking to already hosted content is 100% the way to go.

Please keep it going.