Helpful for social platforms based on Drupal - would like to see relevant features of Friend Connect supported within Apache SocialSite (still hopefull that this effort gains more attention and traction).
I'm happy to announce that Google Friend Connect features are now also available for Drupal and Joomla. Now that Friend Connect is integrated with these popular open source CMS platforms, site owners can make registration easier for users and offer them a set of social features -- all without writing a single line of code. Even site owners without programming experience can add these plugins.
Both Drupal and Joomla integrations include the latest Google Friend Connect features, like Interest Polls, AdSense, Newsletter Subscriptions, Featured Content, and well-known gadgets such as Members, Comments, Recommendations, Activities, Reviews and the Social Bar. When a user joins a Friend Connect site, an account is created and automatically associated with his or her external account of choice (Google, Yahoo, or Twitter, for example). The social gadgets can be placed anywhere in the site using the standard Drupal and Joomla administration interfaces. Site owners can moderate reviews and comments, create new polls to collect information about community members, and then advertise on the site using that information. The newsletter feature allows site owners to create and manage their newsletters using Friend Connect's interface, and site members can subscribe and unsuscribe as desired using the newsletter gadget.
Other relevant information: