My question was already partially answered by Peter on this page: Is there a social members only login plugin for WordPress? Here's the full explanation, questions follow: I have a private family ...
I'm totally new at WordPress and I'm setting up a site where I want members-only pages. But I also want my members to be able to login with there social network logins (Facebook, Twitter, OpenId, ...
Is there any plugin where users can comment with Facebook or Twitter or OpenID...