Facebook List Subscriber

A friend of mine was on a site and he said a pop-up came up and asked him to join a mailing list. It already had is email and it appeared to be a Facebook plugin.

Has anyone heard of this? Sounds really cool.


Edit: In re-reading it sounds like someone is using the Facebook registration plugin which is designed to pull an active login and simplify the sign up process while initiating a Facebook connection. You’ll see Facebook’s messaging on the bottom and of course it means you have to adhere to their terms with your new member.