Google has announced their latest venture into social search through the introduction of a "plus 1" button. At first glance it has immediate similarities to the Facebook "Like" button, but Google will be looking to exploit the power of this in the Search results space, wherein the +1 icons will evolve.
In the future, this could have a significant impact on the Search and Social landscape, so we are keeping a very close eye on developments. However, this is only available to 2% of US Google users currently and will be rolling out as Google closely watches the impact.
In the meantime, you can see more in the Google video below: