Our inaugural “CMO’s Guide To The Social Media Landscape,” in 2010, included the top players of the day: Twitter, Facebook, Flickr, LinkedIn, YouTube, Digg, StumbleUpon, Yahoo, Reddit, and Delicious. As the social sphere continued to grow and change, we added a couple more for the 2011 edition: YouTube and Tumblr. Then, with things really heating up, we grew the chart by five for 2012, this time adding Google+, SlideShare, Quora, Instagram, and Pinterest.
So what does 2013’s version look like? Ten, 15, 20, or more entries?