On Sunday, we reported that Google will now be requiring one domain per ad group as part of their new display URL policy in the AdWords program. In short, what this means is that you cannot advertiser for rustybrick.com and seroundtable.com in the same AdWords ad group.

We were unable to confirm that this change is indeed going to happen until today. AdWordsAdvisor in that WebmasterWorld thread confirmed the change by saying:

So if you are very interested in these details, I would visit WebmasterWorld again later today.

Forum discussion at WebmasterWorld.

Update: On February 20, 2009, Google posted a blog post once again confirming this change and sharing that this will be going into affect the week of February 24, 2009.