In late 1999, after posting his resume on craigslist, he was recruited by Craig Newmark, the founder of the website. As lead programmer, he contributed the site's multi-city architecture, search engine, discussion forums, flagging system, self-posting process, homepage design, personals categories, and best-of-craigslist. In November 2000, he was promoted to the post of CEO.
Craigslist (styled craigslist) is a classified advertisements website with sections devoted to jobs, housing, personals, for sale, items wanted, services, community, gigs, résumés, 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, before becoming a web-based service in 1996 and expanding into other classified categories. It started expanding to other U.S. cities in 2000, and currently covers 50 countries.