The OpenID Foundation today announced Google, IBM, Microsoft, VeriSign and Yahoo! had signed on as the open source identity project’s first corporate board members. If you were concerned about the all those mammoth tech firms weighing in on the spec, the foundation’s announcement says:

“Today’s announcement marks a milestone in the maturity and impact that the OpenID community has had. While the OpenID Foundation serves a stewardship role around the community’s intellectual property, the Foundation’s board itself does not make any decisions about the specifications the community is collaboratively building.

The release goes on to say:

At the beginning of 2006, there were fewer than 20-million OpenID enabled URLs and less than 500 websites where they could be used. Today there are over a quarter of a billion OpenIDs and well over 10,000 websites to accept them. OpenID has grown to be implemented by major open source projects such as Drupal, cornerstone Web 2.0 services such as those by 37signals and Six Apart, as well as a mix of large companies including as Apple, Google, and Yahoo!.”

Even non-tech sites like CNN/Money were picking up the news today. Having Google, Microsoft and Yahoo! all the same story that’s NOT about the Micro-Hoo buyout is probably a good thing.But while there may be a lot of OpenIDs out there, I’m not sure I’m holding one, nor am I sure any of the sites I visit make use of OpenID. Do you — or sites you frequent — use OpenID? And are any enterprise companies using OpenID as a way to authenticate their users behind the firewall? I’d like to hear about it. Please post your comments below.