Google rolled out “Search Plus Your World”, which will make a pretty dramatic impact on search results, further personalizing the search experience for users. The way it works is that when you are logged into your Google profile on Google.com and search for a specific term, say “banana smoothie,” Google will return results from personal, private, public, and social sources in one place. This means that certain private content you and/or people in your Google+ circles have shared on Google’s social network and other services like Picasa will appear on the search results page along with public matches from around the web.

Personal results will be blended into the first page of results shown. So, if you privately posted a photo of an amazing banana smoothie you made and a friend, in turn, privately shared a photo of their favorite banana smoothie, Google would include those photos in search results when you or your friend searched for “banana smoothie.”

Here's a screen shot of how results would appear, with a search for "sushi" as an example (photo source: http://www.google.com/insidesearch/plus.html):

No longer will users have to search by one of two different systems – personalized or social search – as was the case prior to this latest development that combines the two algorithms into one. However, users will be able to switch between personalized and unpersonalized results.

To be clear, the private content that has been shared, and now incorporated into personalized search results, is not part of Google’s public results. The content that will now be visible is only content that has already been shared with your networks.

Check out the full article on Search Engine Land here.