Two-thirds uses social media

According to Market Tools two thirds of the adult population in the USA says that they use social media (blogs, online communities and social networks).
Almost 20 percent sys the they use them on a daily basis and another 20 percent uses it at least once a week.
One third says they never uses it. But the bottom line, it increases, 42 percent says they use these kind of sites more frequently than six months ago.
The graph looks like this:
Women uses it in a larger amount than men, 70 percent women vs. 65 percent men. 22 percent women visits blogs and other social media, while men are 16 percent.