Answers.com

"Answers.com is a free, ad-supported, reference search service, created to provide you with instant answers on over a million topics. As opposed to standard search engines that serve up a list of links for you to follow, Answers.com displays quick, snapshot answers with concise, reliable information. Our editors take our content from over 100 authoritative encyclopedias, dictionaries, glossaries and atlases, carefully chosen for breadth and quality."

Source: Answers.com website