Still drooling about getting into Google+. Asking friends to send you an invite. Feeling bad that you could not sign into Google's social networking venture even with an invite. You can practice one aspect of Google+ using Facebook.
Described by its developers as a “one-night experiment with Javascript,” Circle Hack is a third-party plug-in that enables Facebook users to organize and sort their friends into circles, much like how Google Circles works.
Gadget.com, Circle Hack Gives Facebook the Google+ Treatment
