Older Americans are staking claim to a piece of the social media pie.

A new study from the Pew Research Center’s Internet & American Life Project claims 72 percent of online U.S. adults use social networking sites, up from 67 percent a year ago.  When the study began in February 2005, only 8 percent of adult online users said they were active on social media.

The social media adoption rate for online users aged 65 and over has steadily increased over the last four years tripling to 43 percent today from only 13 percent in spring 2009.

Twitter is singled out as a driving force with adult online users, more than doubling to 18 percent in 2013 from 8 percent in November 2010. Twitter use by adults is concentrated in the 18-29 age range with 30 percent active, but 13 percent of adult online users aged 50-64 and 5 percent of users aged 65 and over also use Twitter.

As social networking sites continue to grow and multiply, slower to adopt older demographics are making waves.