In our 25-criteria evaluation of search marketing agency providers, we identified the 12 most significant ones — 360i, Acronym, Catalyst, Forward3D, iCrossing, iProspect, Merkle, Mirum, Neo@Ogilvy, Performics, Rise Interactive, and Wpromote — and researched, analyzed, and scored them. This report shows how each provider measures up and helps B2C marketing professionals make the right choice.