Marketers Most Certain of Email ROI; Other Kinds, Not So Much

From eMarketer: 

...only 47% of US marketers believe they can effectively measure the return on investment of email marketing, and other types of marketing saw even smaller percentages. For social media marketing, only 26% of marketers think they can effectively measure ROI.

Email's top of the heap in this survey, and for good reason - with the right program, dialing in on who opened, clicked and acted can mean the world to a marketing pro.