Google doesn’t want to be left alone and has added its +1 button to the fray by allowing sites to give visitors the option to “+1” a site or page in addition to the ability in the search results.
Here’s Google’s video presentation which it has on the +1 for webmasters page. The video is old and doesn’t even mention the site level button until the end. I guess it’s not important enough to have its own video? C’mon man!
Google’s blog covers this introduction more in depth here.
What’s your take?