In all, Facebook was the most popular platform for social commerce activity and accounted for nearly 70% of social-driven ecommerce site revenues. While Google+ garnered an average of just 0.21 clicks per content share and 2.56% of revenues - the lowest rate for both - it scored high marks elsewhere. For one, a share on the social network was worth $5.62, compared with Facebook’s 80 cents. Google+ also battled Facebook for conversion, with respective first- and second-place rates of 70% and 66%. Get the full story at eMarketer Read also "Pew Research: Facebook Is Still Tops Among U.S. Teens" at Marketing Land