If you've already tried out our recently launched commenting service via TypePad Connect, you know that we built in very basic support for OpenID sign in from the start. We did this because we know that just as the future of traditional media wasn't a small group of large publishers controlling all of the news, the future of the social web isn't a small group of large social networks controlling everyone's identity. Today we've made it even easier for anyone to sign in, leave a comment, and have a TypePad Profile (see mine) without having to know their OpenID URL or even what OpenID is.
The TypePad Connect team has now explicitly added support to sign in using your Vox, Google, Yahoo!, Blogger, LiveJournal, WordPress.com, or AOL account in addition to your TypePad username and password. This small change means that any blog using TypePad Connect powered comments now has over a half a billion people who can sign in - thus no longer being anonymous - just by clicking a button in the case of Google and Yahoo! or entering their username on AOL, Vox, and the others.
And of course this same idea - bringing your existing identity with you - is built into Motion as well. Our latest application for Movable Type Pro shows off how, just like with TypePad Connect, there are now half a billion people who are able to log into your site, without even having to sign up for a new account.