I think it'd be great if the cover for each album was made into a booklet (like all other albums) and it would give some info on each artist in the album (Newgrounds audio page url, twitter/facebook info, other contact info, etc.). This would be a great way for the consumers to find out more info about each artist. Think about it. If you're listening to a compilation album and you hear a song that just stands out and you think the artist is awesome, you'd definitely want to hear more from him/her. Instead of having to google-rape their name, just look for their youtube channel or facebook url listed in the booklet and learn more about them. If you plan on implementing this idea, once you pick all the entries that made the cut, PM the artists asking them for all their contact info (especially Twitter, Facebook, and Youtube names/urls).
I really hope you decide to implement this idea because it will greatly help all the artists get their names out there more.