OmniAuth 1.0: How to do Google/Twitter/Facebook login right in Rails (new railscast)
Things are much much much improved from before. Of particular note is how much cleaner the Oauth2 API's are.
OmniAuth recently reached version 1.0 and has a number of nice additions. In this episode we’ll take a look at a new strategy called OmniAuth Identity which allows users to create an account by supplying a user name and password instead of logging in through an external provider.
Watch and read the awesome tutorial at railscasts.com
