Use your wordpress blog URL as an OpenID by delegating to a third party provider.
The functionality of this plugin as been included in the WordPress OpenID plugin. This plugin is no longer supported and will not be updated in the future.
OpenID is an open standard that lets you sign in to other sites on the Web using little more than your blog URL. This means less usernames and passwords to remember and less time spent signing up for new sites. WordPress.com recently added support for OpenID, and this plugin allows you to mimick that functionality on your own installation of WordPress by delegating to a third party OpenID Provider.
More information about OpenID delegation can be found at Sam Ruby's excellent blog entry. Of course this can all be done manually, but using a plugin provides the benefit of not messing with the code and more importantly persistence through theme changes.