NOTE: The OpenID service has been disabled.
OSGeo logins support OpenID.
Using http://openid.osgeo.org/ , you can login and get access to your OpenID account, and control what sites you trust, and more.
Your OpenID URL is http://openid.osgeo.org/user/*your_osgeo_username*
OSGeo Userids are discussed at http://www.osgeo.org/osgeo_userid
(For example, http://openid.osgeo.org/user/crschmidt .)