Google Friend Connect is now available in beta. With this service, you now have another way of making your site more social. Friend Connect will makes it easy for you to instantly interact with others on the sites that you frequent. With friend Connect, your site will become OpenSocial container that is capable of running applications created by the OpenSocial developer community. The beauty of this is that it is very easy to set up, all you have to do is just paste a code in your site and you're done.
With member gadget, you can allow visitors to join your site, sign in and out, see other members, and use other social features. Just install this in your site and visitors can start joining in your site.
There are also social gadgets that will allow you to populate your Friend Connected site with as many gadgets as you'd like. There's the Wall gadget that allows viewers to post comments, or links to videos on your site. There is also the Rate and Review gadget that allows viewers to rate a page, or a section of a page. Viewers can use this to rate videos, articles, books, photos, songs, or anything else you can imagine. You can put multiple Review/Rate gadgets on one page, one for each item you want viewers to review. And there is also an available demo of the OpenSocial application that demonstrates the basic concepts that an OpenSocial developer can use in their application. Check out Google Friend Connect now, it's cool.