©IDG Communications, Inc. Photo contributed by Matthew Mikaelian.
Social network users overall skew young, but when looking at specific sites, differences emerge between age groups. In June 2012, Pingdom analyzed DoubleClick data and found that 26% of US social network users were between the ages of 25 and 34, with another 25% between the ages of 35 and 44. Users ages 18 to 24 made up 16% of all US social network users. This study looked at users of a variety of sites, including Facebook, Twitter, LinkedIn, Pinterest, Tumblr, Reddit, StumbleUpon, deviantART and Goodreads.