The adoption of content marketing is surging among b2b marketers, according to a new study by BtoB. The study, “Content Marketing: Ready for Prime Time,” found 34% of marketers are “very” or “fully” engaged with content marketing this year, up from 18% last year. In addition, 66% of marketers project they will be “very” or “fully” committed to content marketing in 2013, according to the study, which was based on an online survey of 440 b2b marketing professionals conducted in April and May.