Incorrect PIN bactrim ds dosage cellulitis Jensen's experience helps explain a remarkable surge in social media usage by older Americans. A report from the Pew Research Center's Internet & American Life Project released this week found that social media use among people over 50 is growing faster than for any other age group. Usage among those 65 and older has tripled since 2009, from 13 percent to 43 percent; in the 50-to-64 age group, usage had risen from 24 percent to 60 percent.