Google Content Network is begining to test some interactive ways for brand advertisers to get feedback on their marketing efforts to help measure the impact of AdWords campaigns beyond traditional click-through and conversion metrics. The test will beging with a limited set of advertisers in the U.S. and U.K., and will available to more advertisers.

•First approach is to gather feedback on display ads by removing the advertiser's brand, presenting few questions to users: 1) Have you seen this ad?, 2) Did you like it?, and 3) What was the product or brand being advertised?

•Second approach involves brand monitoring using gadget ads served on Content Network, that give users the chance to share their thoughts about a set of brand or product names.