support OpenID for snooth accounts/friends/etc

Not sure why I didn't think to mention it before, but seeing it noted in http://startupsquad.com/2007/06/06/... (when I was looking for http://startupsquad.com/2007/06/05/... to see if they'd gotten around to correcting their "private" mistake yet) reminded me: you should add support for (Brad Fitzpatrick et al's) OpenID to save people from account creation (see http://openid.net/) and permit persistence of online identity across other social networking sites for people who want it.

Obviously, you want to be out of beta before you add this, because you want people to actually ASK for a beta account. You may want to just let people review, not store their ratings, or whatever: I'm not totally clear on all the OpenID API details.