While there has been much talk about companies joining the OpenID Foundation, I should mention that individuals can join it as well. It is a great way to show support for OpenID and help it grow and providing financial backing for future efforts in marketing and generally spreading the word about it.
So if you have a strong interest in OpenID and have some money left, you might consider joining it. Annual fees are from $50 for students to $10,000 for organizations with more than 1,000 employees.
Also local chapters of the OpenID Foundation are formed. The first one wil be a Japanese chapter being established in April.