Bizo, a B2B audience data firm, on Monday introduced “Multi-Channel Nurturing,” a new feature of its marketing platform meant for B2B marketers that don’t yet have a prospect’s email address. The platform will allow B2B marketers to retarget prospective consumers across online display and social media. Previously, marketers had only been able to use the platform for automated email campaigns. The company has been testing the new retargeting software in conjunction with Eloqua since October 2013. Monday’s announcement is of the general availability of the software.