问题
How to include login with facebook and twitter option in a website.
回答1:
Go look at http://www.janrain.com/products/engage
They have a very useful tool for doing this and they will walk you through the process (considering you have at least some programming knowledge). They provide code for all the major libraries including PHP, Ruby, Java, and ASP.
来源：https://stackoverflow.com/questions/3290804/include-facebook-and-twitter-as-login-option