Google has changed some of its policies regarding how it is collecting data from users. A couple of good links on the subject include the WSJ write up and the EFF write up at the USA Today.
WSJ:
In sum, Google is tracking every move you make and connecting it together. If you watch a Youtube video, google logs this and then analyzes it against the searches you've made and the emails you send. To avoid this, you must be logged out and by default, Google logs you in. To make sure you are...
Published on January 27, 2012 12:00