I've been working on http://shortreviews.net recently - an entertainment review site.

Our emphasis is on allowing groups of friends to sign up and influence the entertainment choices of their peers. To support this many sections of the sites allow you to view only your friends reviews, if you wish - and signups with social networks automatically associate you with any members you are friends with.

Right now we support Facebook/Myspace/Twitter logins, with the ability to post your reviews back to your social networks if you wish. We are almost finished adding Netflix support, to enable users to automatically retrieve a list of movies and TV shows they've watched.

Any suggestions are appreciated - we plan to keep adding features and evolving the site in useful ways while our user base grows.