According to their blog post, Google is rolling out Social Search globally.
Today, we’re bringing Social Search to more users around the globe.
Just like on google.com, social search results in other languages and on other domains are mixed throughout the Google results page based on their relevance. For example, if you’re looking for information about low-light photography and your friend Marcin has written a blog post about it, that post may show up higher in your results with a clear annotation and picture of Marcin.
Social Search can help you find pages your friends have created, and it can also help you find links your contacts have shared on Twitter and other sites. If someone you’re connected to has publicly shared a link, we may show that link in your results with a clear annotation. So, if you’re looking for information about modern cooking and your colleague Adam shared a link about Modernist Cuisine, you’ll see an annotation and picture of Adam under the result. That way when you see Adam in the office, you’ll know he might be a good person to ask about his favorite modern cooking techniques.