On Wednesday Google formally announced its support as a provider for the OpenID 2.0 protocol, offering some site owners a way to let users log-in and register for new accounts using existing Google account information. More importantly, Google will be letting these same users manage all their linked account information in one central location.

This new log-in offering is not available to all site owners just yet. Google has set up a sign-up form where developers can apply with their URL and OpenID identification to get access. Plaxo and Zoho are two of the first sites to already have the new system in place, with Zoho having offered a similar option since mid-April.