[OpenID] Great introduction to OpenID

[Aswath Rao]

A few days back I read a great introduction to OpenID. Instead of going 
through the same flow as the spec, it first started with the scenario of 
checkid_immediate and then introduced the scenario for checkid_setup and 
then finally introduced Association. Another distinguishing aspect is that 
it used a chatty style with different people helping this website owner. I 
would appreciate it if somebody recognizes the article I am referring to and 
post a link to it.

I tried browser history and Google desktop and couldn't locate it. :-(

Thanks
Aswath