Business-to-business social media marketing has always been a harder nut to crack than its business to consumer counterpart. A new study suggests that a refusal to embrace new social channels might be one reason why.

While more B2B marketers are using social media sites than ever before, Facebook (83 percent), Twitter (80 percent) and LinkedIn (80 percent) are far and away the platforms of choice for the majority of brands, with YouTube (61 percent) and Google+ (39 percent) rounding out the top five.

Pinterest is used by just one in four B2B marketers (26 percent), and Instagram less than one in ten (7 percent).

Via Lauren Moss