Welcome to the Q&A Forum

I know of a company that likely worked out a deal with a chain of rent to own furniture stores and were able to get Google Places listings with their own unique local phone numbers at each physical address across the state of Texas. I notice now they do not have the places listings they once had? Maybe they did not hide their physical address as they should have since customers purchase online rather than come into store and Google shut all their places listings down. Not real sure. Also a lot of their local domains they bought do not seem to come up number 1, 2, 3 spots anymore. They appear on page 2 - 5 on Google although their main domain ranks for things well still.

Looks like they're being real selective at this early stage. http://adwords.blogspot.com/2011/05/comparison-ads-now-part-of-new-google.html "At this time, AdWords Comparison Ads remains available only to a limited number of advertisers. Over time, we hope to increase the availability of Comparison Ads to additional advertisers. You can find more information about AdWords Comparison Ads in our Help Center." I can't find anything more specific than that. Barry at Search Engine Roundtable keeps a close eye on things like this, and would be one to blog about it when it's opened up for more people.

You can block the urls which has term "/product/search/"  in them. It can be easily done by adding  the following to the robots.txt User-agent: * Disallow: /product/search/ Hope this helps...