Google Dashboard: Know What Google Knows About You!
If you use Google services, now you have a tool to know exactly what Google knows about you. And more, you can change settings in order to have more privacy. Everything Google stores about you, is only accessible by you.
You can find the dashboard over at google.com/dashboard, or by login into your Google account, clicking on Settings, choosing “Google Account Settings” from the dropdown, and then clicking on the link next to “Dashboard”.