With Onesheet, Brenden Mulligan aims to create a way for bands to set up a web presence in under a minute. I think he succeeds spectacularly. Create a single-page site, connect it to third-party services you have for your band (ReverbNation, Soundcloud, YouTube, etc.), and it automatically reflects all future updates to those services. The concept is the opposite of Mulligan’s ArtistData project, which helps artists syndicate band info across the web from one spot.
This is really impressive, and clearly he has a model to help various entities with multiple social media presences create a sort of meta-presence with no extra effort.