Social Web Blog: Introducing the +1 Button
Google's version of the Facebook Like button. However, this might be even more useful than the Like button as it will provide social recommendations when you're looking for something vs. when your friend is looking at something. However, Facebook Liking does carry with it the lovely feature of serendipitous discovery.
I guess that's the main difference, would you rather have social recommendations when you're already looking for something? Or would you rather stumble on them when your friends choose to share them?
