The Simon Wiesenthal Center for Tolerance has a report indicating a 20 percent increase in hate-affiliated content, according to CNN:

The report, Digital Terrorism and Hate 2010, notes that there are about 11,500 hate-affiliated Web pages, a 20 percent jump from last year’s study.

According to the Wiesenthal Center, personal blogs as well as mainstream social-networking sites such as Facebook, MySpace, YouTube and Twitter are easily flooded with racist and terrorist-related content.

“The spike is not in traditional Web sites in the United States,” said Rabbi Abraham Cooper, associate dean of the Simon Wiesenthal Center. “It’s more global and almost all in the social-networking area.”

Mark Weitzman, director of government affairs for the Wiesenthal Center and a co-author of the report, said home-grown terrorism suspects have an active online presence. He cited the case of a Pennsylvania woman who officials say called herself “Jihad Jane.”