Google Alarm is add-on for Firefox and Chrome Browsers. It will notify you whenever your PC information is sent to Google Servers.You don’t have to visit a Google-owned Web site in order for information to be sent to Google. You can visit a site that uses any of Google’s services, such as Google Analytics or Google AdSense, among others.
Use this software and you’ll be amazed at how frequently Google gets information about you, often when you don’t expect it. But the software can’t actually do anything about that happening; it just alerts you that it happens.