Log into sites such as
LiveJournal,
Blogger,
Dopplr,
Zooomr,
dasregistry,
Jabber,
Common Craft,
Ipernity,
Wiki Travel,
WetPaint,
Egofolio,
Open id Directory
and more...
Log in to other sites as http://username.openid.org
* You can also log in as http://openid.org/username