I tweeted about this yesterday but want to make sure that everyone knows about it.
One Sheet is a very simple online presence for artists. The cleverest thing about it is that it links to the API (the exchangable information) in all your other online profiles at places like Facebook, YouTube, Songkick etc and therefore it updates itself.
It takes 2 minutes to set up and, in theory, you can leave it alone after that.
I also like the clean and simple design with a single large image background and the clarity of the layout and usability.
I expect most artists to build one and use it as an online business card. I can see industry folks using it as a quick reference on any band as well.