It'll be launching as an opt-in project in the next few weeks. Then, you'll need to have a Google account and set up a Google Profile to fill in information about the social networks that you use. Google first launched Profiles about a year ago.
Is it JUST ME that thinks this is insidious? How on earth can Yahoo's beacon face legal challenges about tracking and privacy issues, when Google sails into a system which systemically tags every social profile to a unique ID?
Wasn't the openID project designed to stop the impending civil liberties trainwreck?
Yep... I'll sign up - it's my job - but if I was a politician I would feel a problem growing.