Online Publishers Association has published a study on Banner Ads and how they affect search. This is really important information for marketers who track how effective are their Display Ads because they might be missing critical information in their calculations[...]

Just not in the copy. In order to generate more revenue, Google is kicking up a controversial strategy to allow competitors to use each others trademarks in the keywords that cause ads to surface when people search for such things as brand names. Starting June 4, 200 countries (including the USA – see list here).  [...]