1. A computer-implemented method to access trusted user generated content (UGC), the method comprising: receiving user registration information, the registration information including one or more identities for each user, each identity corresponding to a social network that is facilitated by one of a plurality of social network sites; collecting social relationships corresponding to the identities for each user from the plurality of social network sites; creating user extended social networks for each user by joining the collected social relationships, wherein an unregistered user is associated with an identity of the unregistered user in the one of the plurality of social network sites; collecting UGC from the plurality of social network sites; correlating the collected UGC with the extended social networks to identify an author of the UGC; filtering the correlated UGC according to access rules defined by a requesting user and according to share rules defined by the author of the UGC, wherein the access rules and the share rules are defined in any of the plurality of social network sites of the author; and providing the UGC to the requesting user, the UGC being available for presentation on a display.
8. The method as recited in claim 1 , wherein the UGC is one of ratings, reviews or wish lists.