Feb 3, 2014 at 2:45pm ET by Ginny Marvin Google announced it is adding a Search Funnels Attribution Modeling Tool to AdWords to help marketers better understand how AdWords campaigns are part of the sales funnel. Advertisers can look at five different attribution models in AdWords and compare up to three attribution models simultaneously to analyze keywords, ad groups and campaigns that are contributing to the funnel, but aren’t represented in last click conversions. Continue Reading