Google tracks your usage data and works on averages to make its services better. There is a lot of concern over privacy and the company faces certain lawsuits over it. Google also gives you the option to opt out of the tracking program. Here are at least 3 things that you can do:
1) Change the default search engine: Since other search engines have caught up with Google, Google search’s unsatisfactory performance after Panda update and Google’s big site bias, you can now safely shift your search engine to something else. I personally went back to AltaVista search. Google search on Google Chrome could be a dangerous combination, right?
2) Change the geo location settings: Here is where Chrome tracks and is on by default. Type chrome://settings/ on address bar > Show advanced settings… > Privacy > Content Settings > Location > Click Radio button : Do not allow any site to track my physical location > Done.
3) Opt Out of Personalised ads: Advertisements are not bad. It keeps internet mostly free for most of us. Please don’t use Adblock, as it is a selfish thing to do. However, what is not correct is advertisements that are personalised. Change the preference here http://www.google.com/ads/preferences or simply use Chrome Extension Keep Me Out .
You have more tricks, let me know.