Take a Second to Review Google's Privacy Policy

Take a second and think about what you have searched for, where you have gone on line over the last few years. Google will soon combine all the information it has collected about you. EFF (The Electronic Frontier Foundaton) has an article describing the steps you can do to "erase" this history

On March 1st, Google will implement its new, unified privacy policy, which will affect data Google has collected on you prior to March 1st as well as data it collects on you in the future. Until now, your Google Web History (your Google searches and sites visited) was cordoned off from Google's other products. This protection was especially important because search data can reveal particularly sensitive information about you, including facts about your location, interests, age, sexual orientation, religion, health concerns, and more. If you want to keep Google from combining your Web History with the data they have gathered about you in their other products, such as YouTube or Google Plus, you may want to remove all items from your Web History and stop your Web History from being recorded in the future.