Craigslist.org has acquired 12th position in the United States and this is a classified advertisements website with sections devoted to jobs, housing, personals, for sale, items wanted, services, community, gigs, resumes, and discussion forums. Craig Newmark began the service in 1995 as an email distribution list to friends, featuring local events in the San Francisco Bay Area. It became a web-based service in 1996 and expanded into other classified categories. It started expanding to other U.S. cities in the year 2000, and now covers 50 countries.

In March 2008, Spanish, French, Italian, German, and Portuguese became the first non-English languages Craigslist supported. As of August 9, 2012, over 700 “cities” in 70 countries have Craigslist sites. Some Craigslist sites cover large regions instead of individual metropolitan areas—for example, the U.S. states of Delaware and Wyoming, the Colorado Western Slope, the California Gold Country, and the Upper Peninsula of Michigan are among the locations with their own Craigslist sites.