As noted by our email marketing session presenter, Gene Sower of Samson Media, email is still a viable resource. "It was the first social media," Gene told me, when he and I talked.
This graphic demonstrates how and why Gene is right. Are you using email marketing effectively? Over on Gene's blog, he has a great post that says email marketing and social media are the "Best of Both Worlds" – citing a chart from emarketer as his source. [click on the image to enlarge for detail]