In December of 2010, both Google and Bing confirmed that links shared through Facebook or Twitter have a direct effect on search engine rankings. And in a 2011 Marketing Sherpa Report, 64% of marketers have begun integrating social media into their search marketing efforts. http://mashable.com/2011/03/04/search-marketing-changes/
About The Author
Graphic designer since before the Internet. Started with newspaper paste-up; then art director for advertising agency in Reno, NV; and now freelancer designing marketing materials, print-on-demand t-shirt art, websites, and social media graphics.