The change in the search engine stems from Google's new technology GoogleBot.
Google to make changes to search engine
2:03 p.m. EDT, November 4, 2011
Google announced it will soon use comments on Facebook as part of their search results.
Comments on Facebook and other social networking sites were unavailable on Google search because the search engine was unable to automatically read Facebook’s programming.
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Technology Still, the search engine cannot find users’ comments posted on private pages within Facebook.
However, if you have used Facebook to comment on a third-party website, your comments can be searched on Google.
The website Webmonkey said Google web developers are concerned about the changes, aware the changes could upset the public once their potentially embarrassing, private comments are available through Google’s revamped search engine.