JanRain – Identity Services with OpenID
http://janrain.com/

JanRain is a team of 11 Internet ninjas who are building the next generation of light-weight identity services for the web. They have been leading the way in developing the emerging OpenID protocol (one username, one password for all of the sites you go to on the Internet) as a means of delivering those services. JanRain’s mission is to provide identity services that help users securely manage, control and innovate their own digital identities with OpenID. This has been added to Privacy Resources Subject Tracer™ Information Blog.