There was a time not so long ago when musical artists flocked to MySpace to showcase their latest efforts. The site was particularly important for up-and-coming acts.
These days Twitter is a growing hub to find out about new music, if not listen to it. Granted, the site does not offer a music player like MySpace or Facebook. But it does feature links out the wazoo and interesting dialogue between artists (see: Tyler, the Creator and Pusha T of Clipse and Tyler, the Creator and Kanye West).
I first heard about R&B rookie Frank Ocean, he of the polished sound and Odd Future pedigree, through a tweet from hip-hop artist Lupe Fiasco saying he had listened to Ocean rather than Radiohead during a flight to Atlanta. (NOTE: Odd Future is known for its left field raps; Ocean does not rap on Nostalgia/Ultra)