This is simply genius. Now when sending a message on Facebook, you can add your friends’ email addresses to the From field. If they have a Facebook account, it will be forwarded there. If they don’t, they’ll get the message by email.

Amazing and astonishingly simple. This is sure to revolutionize online communication. Sure, Facebook has already done that, but now even non-Facebook users can interact with Facebookers with no problem. via the Facebook Blog.