Dave McDuff is the co-founder of the ultimate PPC ad research tool on the market ? ZamDoo! With ZamDoo (http://www.zamdoo.com), internet marketers can research the PPC ad space on Google, MSN & Yahoo, and discover which ad text, positions, keywords and time of ad placement are the most successful. Having this information before starting a campaign means marketers can enter a new market (or refine existing campaigns) with rich data on their competitors.