+1, Google's Like Button
Google rolled out their own version of the Like button but they’re calling it +1, which hardly explains what it does. It’s a Like button, pure and simple, and it will apparently have an influence in search rankings, so expect to see them everywhere soon. Right now, it’s a Google Labs experiment that you must opt-in to use. Found at YouTube from Google.
[…] We have a relevance indicator so powerful that Google had to go create their own like button, with the horribly-named +1 button. […]