Some time ago I asked myself the question, “why does Facebook not support OpenId to log in?”.

Despite the fact that facebook directly competes OpenId with it’s facebook connect product, they’re even going a step further than most of the other sites featuring OpenId logins.
Facebook seems to become not only an issuing party (make your accounts compatible with OpenId) but also a relying party (accept login credentials from other OpenId sites).

Hopefully this will help OpenId to increase popularity…

(via TechCrunch)