title: how to integrate fFacebook login with your website?
body: <p>I made some research and i can't seem to completely understand how to integrate Facebook login with your website.</p>
  <p>I'm trying to do this for an old fashioned PHP shop that, up till now, doesn't use any type of login, but only a session that allows users to browse across pages and add items to cart.</p>
  <p>I read here, on Stack Overflow, that you need a table in your database to keep the user's email address and facebook_id. So after that I can hook up with other tables in my database in order to provide info and much more to each user?</p>
  <p>Are there other ways to easily integrate your website with Facebook  and Google accounts? I read something about OpenID, but didn't really understand what's its use :)</p>
  <p>So that's why I'm asking you to put me on track :). I'm really new with this and any advice, best practices etc. will be greatly appreciated!</p>