Jeff Rohrs is an expert in the integration of social and email marketing and he selflessly shares excerpts from his excellent research projects.Exact Target is an email marketing platform and they've acquired Co-Tweet, so Jeff spends a chunk of his time looking for the sweet spots for marketers at the crossroads of email and social marketing.Learn about how to market to three unique constituents:Subscribers - send them episodic, actionable content.Fans - send them "emotional" content because they have a passion for your brand.Followers - send them social objects they can play with, mash up and radiate.