The number of U.S. Internet users aged 65 and older increased more than 55 percent between November 2004 and November 2009, according to data from Nielsen. The measurement firm estimates that 17.5 million seniors are now online, compared with 11.3 million five years ago.  What is also interesting to me is the fact that they list online activities like Facebook and YouTube as popular things to do.  Here is a chart from Clickz showing the top 10 online destinations of Internet users 65 and over in November of 2009: