Digital marketers can take comfort in the fact that online activity spans the generations, from younger digital natives to boomers, writes Chris Horton. But according to a Forrester Research study from 2011, those aged 56 to 66 spent the most online out of all cohorts. "[A]s everyone scrambles to capture Millennial mindshare, let's not forget about the Boomers, the original uber-demographic. ... The Boomers are online; they have the time and the dough. Let's figure out how to start marketing to them," Horton writes.