RipLounge.com, the premiere music-infused 3-D social networking site, has opened it’s velvet ropes to the public. In hopes of finding new music to add to their playlists, RipLounge is accepting entrants via SonicBids.com/RipLounge through its “Rock at RipLounge” contest. If you think your music would appeal to an international audience and fit nicely on a playlist between Kanye and Jay-Z, …