Contact management and social networking site, Plaxo, has announced it will join the growing legion of OpenID supporters. It not only supports the OpenID standard for authentication; it’s also published an implementation guide to assist existing users in becoming OpenID consumers. It’s great to see Plaxo taking steps toward its goal of helping build an “Open Social Web.” (full article)

With big players like AOL, Microsoft, and of course, NetIDme supporting the OpenID technology, adoption is progressing at an encouraging rate.

Liberty Alliance, the global identity consortium working to build a more trusted Internet for consumers, governments and businesses worldwide, today announced the webcast, ‘SOA: Protecting the Architecture by Leveraging Standards.’ This public event will take place on Wednesday, July 18 from 8:00-9:00 a.m. US PT and will focus on the business challenges involved in protecting SOAs and a potential solution based on injecting identity into all of the layers of the architecture to enable single-sign-on (SSO) and enforcement of policy across the deployment. more

Windows CardSpace Technology

Blinksale, the online invoice service has just announced support for OpenID.

LiveJournal.com supports the OpenID distributed identity system, letting you bring your LiveJournal.com identity to other sites, and letting non-LiveJournal.com users bring their identity here.

NetIDme Identity System

NetIDme has recently launched NetID Authenticate, an age & identity verification service for the internet.

OpenID seems to be increasing in popularity, as adoption and support grows. Check out this good article: Could OpenID be Our Savior to the Social Network Blues? on the benefits that OpenID can bring to social websites.

NetIDme