http://www.reuters.com/article/lifes...31943720080916
looks like shap may have been right -
"Tancer, general manager of global research at Hitwise, an Internet tracking company, said one of the major shifts in Internet use in the past decade had been the fall off in interest in pornography or adult entertainment sites.
He said surfing for porn had dropped to about 10 percent of searches from 20 percent a decade ago, and the hottest Internet searches now are for social networking sites."