Quote from http://hublog.hubmed.org/archives/000942.html
- Everything you search for using Google
- Every web page you visit that has Google Adsense ads on it
- Which country you're in
- Every Blogger page you visit, and the referring page
- If you have an Adsense account
- Your full name, address and bank account details
- The IP address of everyone who visits your pages with Adsense ads on them
- The number of visitors to each of your pages with Adsense ads on them
- If you use a GMail account
- Who you send emails to
- Who sends emails to you
- The contents of those emails
- The contents of all emails received from any mailing lists of which you are a member, even if they are private mailing lists.
- Even if you don't use a GMail account
- The contents of any emails you send to anyone who does use a GMail account
- The contents of any emails you send to any mailing lists of which any one member uses a GMail account
- If you're a member of Orkut
- Your online social network, interests and groups
Google knows a lot about you. They do everything they can to try to track your activities online, and even put a cookie on your PC. If you ARE worried: this page tells you how to anonymize the Google cookie and more in the following:
- disable cookies in your browser
- don't use the Google Toolbar or turn off the features that "phone home": it's easily done
- don't use other Google services that index your hard drive or track your surfing
- use a different blog service
- use a different affiliate, if you think that will mean they are not tracking you