In preparation for interest-based advertising, please ensure that your site's privacy policy is up to date by April 8, 2009. Visitation information from publisher sites will be used to create user interest categories, delivering more relevant ads and improving monetization for publishers over time. Learn more... What the heck is this? Do we have to publish some policy or something on our websites?
Um, yeah. If you don't have a privacy policy your account can be banned. That is an old notice from almost six months ago (last April), just reminding you to make sure you have a privacy policy on all the sites you have adsense on (if you didn't already know this, then you really need to read the Adsense TOS).
Yes read the program policies - you have been required to have a privacy policy since 2008, and you were required to update that policy before April of this year. Google not only put a warning on accounts, but also sent out an email to publishers about the change in March, so you need to be sure you are actually reading what Google sends you. Read about the privacy policy: https://www.google.com/adsense/support/bin/answer.py?hl=en&answer=100557 A sample you can use: http://www.jensense.com/2009/04/03/...ample-with-interest-based-targeting-included/