What is OpenID?
OpenID eliminates the need for multiple usernames across different websites,
simplifying your online experience. It's a standard used by many different
websites, including Yahoo.
You may already have an OpenID if you have an account with any of these
websites. Click on the name to get more information about the OpenID services
they offer:
If you don't have an account with any of these services, or don't want to use
them to manage your online identity, try MyOpenID.
The official page for OpenID is http://openid.net/.