Just got it: We've recently enabled the Google content network to accept display ads served from qualified third-party vendors. At this time, only ads in English are eligible. If you're currently opted in to image ads, you're already able to receive third-party ads. If you've disabled image ads, no third-party ads will be served on your site. (Learn how to enable or disable image ads at https://www.google.com/adsense/support/bin/answer.py?answer=9741.) You may decide to allow third-party ads on your site by opting in, or remaining opted in, to image ads. If so, we ask that you update your privacy policy to inform your visitors that third-party vendors may serve ads on your site. Please also provide links to these vendor websites and inform your users that they may opt out of cookies (if the vendor offers this capability). For more information about updating your policies, visit https://www.google.com/adsense/support/bin/answer.py?answer=94150. You'll continue to have full control over which ads appear on your site with tools like competitive ad filtering and the Ad Review Center. Also, only advertisers with whom we have proven relationships and who've clearly demonstrated commitments to our quality standards may participate in this program. Our policies governing ad content and formatting remain unchanged. To learn more about third-party ad serving, please visit our blog post at http://adsense.blogspot.com/2008/05/introducing-third-party-ads-on-google.html and our FAQ at https://www.google.com/adsense/support/bin/topic.py?topic=14535. If you have any questions or feedback, feel free to contact us at . Sincerely, The Google AdSense Team Google Inc. 1600 Amphitheatre Parkway Mountain View, CA 94043