Tutorials

http://mherman.org/blog/2013/11/11/user-authentication-with-passport-dot-js/

http://mherman.org/blog/2013/11/10/social-authentication-with-passport-dot-js/

http://mherman.org/blog/2015/09/26/social-authentication-in-node-dot-js-with-passport/

Information on passing data from the call to an OAuth provider back to a callback handler can be found here: https://github.com/jaredhanson/passport-oauth2/issues/96