I tried building a static website for people to browse tech article headlines that were gather ed from around the web. The feedback was that people like the style and general idea, but wanted a crap ton of features that can only be accomplished in a highly dynamic and scalable web site. IE Logins, Voting, Commenting, Friending, Favoriting, Etc and so forth.
You can do any of these things by building an API and communicating with it using javascript in the browser. This method generally leads to a more responsive interface as well, as you don't have to reload the page when the user favorites, friends, etc.