WaPo:

censored_craigslist.jpg
Craigslist, the Internet's iconic ad bazaar, has stopped allowing U.S. users to access its "adult services" ads.

On Saturday morning, the link to those ads - which had been criticized by prosecutors and human-trafficking groups as a tool for pimps and prostitutes - were replaced by a black box with the word "censored" in white letters. News reports indicated that the ads were still visible to users in other countries.

It's unclear, for now, whether the change is a temporary statement or a signal that Craigslist will stop allowing the ads.