What is OpenID Good For? Lots!
By billy.cripe on Aug 26, 2008
The only reason I join some sites is because I can use my OpenID (http://billy.cripe.myopenid.com). Plaxo is one example. The ability for me to take my persona with me and into sites around the web is of inestimable value. The ability for me to maintain a different "persona" or subset of my identity means that I can expose professional information to professional networking sites like Plaxo while allowing more whimsical personal information to come through for sites like Jyte.com.
Now if someone can allow me to input my social connections into my OpenID and take those with me to LinkedIn, Facebook, NING sites and such the world will be a better place.