omniauth

Building a Facebook Application —March 06, 2011 by devcenter.heroku.com
Sinatra/OmniAuth Example —February 06, 2011 by github.com
Simple OmniAuth Railscast —January 31, 2011 by railscasts.com
Omniauth: overview - devise —January 11, 2011 by github.com
holden/devise-omniauth-example —January 11, 2011 by github.com
Implementing an OAuth Provider —January 07, 2011 by railsatwork.com
Multiple Applications with Devise, Omniauth and Single Sign On —January 01, 2011 by blog.joshsoftware.com