The Internet Movie Database (IMDb) started as a hobby by English film enthusiast Col Needham in 1987 to share information about movies and actors. On October 17, 1990, Col Needham created and posted basic software to allow users to search a movie and TV database on USENET, launching IMDb. The original database was built from credits lists collaboratively compiled by early users. IMDb has grown to be one of the most popular online entertainment destinations with over 100 million users, and was acquired by Amazon in 1998.