[OpenID] Mixi's news (AX, Yahoo!)

[SitG Admin]

>It not only offers OpenID to its users, but also offers the 
>capability to authenticate/authorize based on someones membership in 
>the friend list or mixi community.

Excellent news! Integrating users' social identity and leveraging 
that on an automatically updated basis (daily, weekly, whenever the 
user tries to authenticate again and their Friend/Community status is 
rechecked) sets a good example. Might need more communication between 
OP and hosting provider to duplicate without using an internal 
(same-site) mechanism, but that's one of the things AX can be used 
for, or perhaps the site's API if it has one? I hope to see many 
other sites adopt this - Yahoo!, for instance, though it might not 
have Friends lists (Flickr?) or Communities, it does have *lists*, 
and since many of those have private membership, an anonymous way to 
prove "I am a subscriber to this list." would be *excellent* 
(speaking from a Relying Party standpoint).

-Shade