Craiglist is an online classifieds site that allows users to post listings for a variety of categories including housing, jobs, items for sale, services, and personals. It is free to browse listings and create an account, though some job postings require a small fee. Listings remain active for one week before expiring, though users can repost expired listings. Craiglist has a large user base with over 30 billion page views per month across more than 700 locations worldwide.