Is a network of local communities on the Internet, offers a free service to display advertisements on the internet and has many sections such as employment, real estate and personal services. Entered craigslist on the Internet in 1999 and began its services in nine cities in the United States of America to the year 2000. During the years 2001 and 2002 added craigslist the four other cities to the list of services, and in 2003 has added 14 cities to the list of services. craigslist began to expand its services significantly in 2009, which added to its list of 700 countries in 70 countries around the world. Occupying craigslist location in the Alexa ranking No. 43 in the world and tenth place at the level of the United States of America. Considered craigslist of the leading websites in the field of classified ads at the level of the world where receives more than one million monthly classified ad posted on its pages.
