According to a TechCrunch article in The Washington Post, Facebook has joined the growing ranks of OpenID supporters.
This means that Gmail users can pop over to their Facebook account, or the sites of other OpenID providers, without having to sign-in with a Facebook username and password. ITProPortal.com notes that users win because now they don't have to juggle so many passwords. Facebook wins because
"In tests we've run, we've noticed that first-time users who register on the site with OpenID are more likely to become active Facebook users".
As IT Business Edge blogger Carl Weinschenk has pointed out, OpenID has gained quite a bit of traction with the likes of IBM, Google, Microsoft and Yahoo joining the board.