What is the DoubleClick DART cookie?The
DoubleClick DART
cookie is used by Google in the ads served on publisher websites
displaying AdSense for content ads. When users visit an AdSense publisher’s
website and either view or click on an ad, a cookie may be dropped on that
end user’s browser. The data gathered from these cookies will be used to
help AdSense publishers better serve and manage the ads on their site(s) and
across the web.

What should I put in my privacy policy?

Your posted privacy policy should include the following information about
Google and the
DoubleClick DART cookie:

• Google, as a third party vendor, uses cookies to serve ads on your
  site.
• Google’s use of the DART cookie enables it to serve ads to your
  users based on their visit to your sites and other sites on the
  Internet.
• Users may opt out of the use of the DART cookie by visiting the
  Google ad and content
  network privacy policy.

Because publisher sites and laws across countries vary, we’re unable to
suggest specific privacy policy language. However, you may wish to review
resources such as the Network
Advertising Initiative, or NAI, which suggests the following language
for data collection of non-personally identifying information:

We use third-party advertising companies to serve ads when you visit our
website. These companies may use information (not including your name,
address, email address, or telephone number) about your visits to this
and other websites in order to provide advertisements about goods and
services of interest to you. If you would like more information about
this practice and to know your choices about not having this information
used by these companies, click here.

You can find additional information in Appendix A of the
NAI
Self-Regulatory principles for publishers (PDF). Please note that the
NAI may change this sample language at any time.