I'm a happy new user of http://myopenid.com.
- Registration was very simple
- The OpenID urls you get are nice (yourchoice.myopenid.com)
- It supports multiple personas, i.e. during the signon process, you can choose differents sets of personal information to share with the requesting site
- You get a detailed account activity report
Out of laziness, I've been resisting for years to get a proper OpenID account. Sometimes I've been using the one provided with blogger.com; others, my Flickr photostream url. And then sometimes I've signed up to places using my google or twitter accounts. In fact, a site requesting access to my list of contacts during registration with my google account has been the trigger to take care of this.