Five websites that carry prostitution advertisements in the United States set a record with combined revenue of nearly $3.3 million during January. The total was up 1.4 percent from December and 3.3 percent from January 2011.

It’s the highest combined revenue total since Craigslist stopped selling advertising for escorts and other adult services in September 2010.

About 70 percent of the revenue

This article is locked. Please email for more information.