Question: What is OpenID?
Official View: OpenID is the decentralized, lightweight protocol for single sign-on and portable identity that is causing a massive disruption in today’s internet. More than 8,000 Web sites currently accept OpenID, a figure growing by five percent week over week, and many of the world’s leading companies, including Google Blogger, AOL, VeriSign, France Telecom and Sun Microsystems have adopted or announced support for OpenID enabling over 160 million users.
What is an OpenID? [via janrain]
Wikipedia View: OpenID is a shared identity service, which allows Internet users to log on to many different web sites using a single digital identity, eliminating the need for a different user name and password for each site. OpenID is a decentralized, free and open standard that lets users control the amount of personal information they provide.
OpenID [via wikipedia]