I always wonder that people don’t care about what the companies behind the popular search engines do with their data. but, at least for searching the web, there is an alternative which protects your privacy: startpage.com.
if you want to read a little summary, check this: aboutstartpage
and if you want to read even more, check this: First European Privacy Seal Awarded
plugins for most of the popular browser are available here.
Daniel Westermann's Blog 