Craigslist is a classified advertisements website that began as a local community newsletter in San Francisco. It now hosts classified ads across hundreds of cities globally. [1] Craigslist allows users to post free classified ads in categories like housing, jobs, items for sale, services, and more. [2] It has become one of the most visited English websites due to its large user base of over 2.2 billion monthly users. [3] While originally focused only on San Francisco, Craigslist now has local sites in over 450 cities worldwide.