In order to help you stay up to date with changes to our AdWords policies, we’ve launched the AdWords Policy Change Log. This new site makes it easier to stay informed about upcoming AdWords policy changes by posting a short summary, including the affected region, for each policy change going into effect.
While the AdWords Policy Change log will have the most comprehensive listing of changes to AdWords policies, if we anticipate that your account will be directly affected by an upcoming policy change, we’ll still email you a service announcement, as necessary, to make sure you’re aware of the change.
Posted by Dan Friedman, Inside AdWords crew