In the first three short videos on privacy, Google talks about what information we collect when you use our search engine and the steps we've taken to protect it. In future videos, we'll talk about why Google keeps logs, what information we record when you're signed into a Google account and steps you can take to increase your privacy when surfing online. Much of this information is already available at our online Privacy Center at http://www.google.com/privacy.html

In order to give you the best possible information about the privacy settings for our products, we asked the engineers and product managers who actually designed them to explain how they work.

A three-part video series about how third party ad serving works.