As a "part of an agreement with attorneys general in 40 states," Craigslist will start monitoring its always-amusing "erotic services" a wee bit closer. The deal will require sex workers who post here to "provide a working number" and pay with a valid credit car. Why? Well, this way, if needed, law enforcement can have Craigslist to subpoena this info. The site will also sue "14 software and Internet companies that help people who post erotic service ads" that aren't on the up and up -- i.e., scams. (CBS5)