Wikipedia puts the fraction of the U.S. population using the internet at about 81%.[1] They link to a source, but beware it links straight to an excel file[2].

Wikipedia puts the fraction of the U.S. population using the internet at about 81%.[1] They link to a source, but beware it links straight to an excel file[2]. [1] http://en.wikipedia.org/wiki/Internet_in_the_United_States#Access_and_speed http://en.wikipedia.org/wiki/Internet_in_the_United_States#A... [2] http://www.itu.int/en/ITU-D/Statistics/Documents/statistics/2013/Individuals_Internet_2000-2012.xls http://www.itu.int/en/ITU-D/Statistics/Documents/statistics/...