"Decide an important action + encourage fans to do the action." There are three phases according to Vinson: Attract fans from social networks a.k.a. "outposts." Engage them with a "compelling fan experience." Sell through simple calls to action.
Have one concept per page���one call to action.
Source:
http://virtualmusic.tv/2010/07/nms_one-call-to-action/
