Google has had their +1 feature out and about for almost a month now, we will soon see this become a permanent change on the web and in our day to day lives. It is a Google counter to the ever popular Facebook Like button. Speculation has already ensued as to how this will play a role, if any, in the SERP’s for website ranking.
It’s definitely a bold move, surely one of many to come. Give it a look here: Preview Google Plus1 (+1) Feature