DuckDuckGo
DuckDuckGo
DuckDuckGo is an Internet search engine that uses information from many sources, such as crowdsourced websites like Wikipedia and from partnerships with other search engines like Yandex, Yahoo!, Bing and WolframAlpha to obtain its results. The search engine policy says that it protects privacy, and does not record user information. Because users are not profiled, the “filter bubble” can be avoided, with all users being shown the same search results for a given search term.

The company is based in Paoli, Pennsylvania, United States in Greater Philadelphia. The company name originates from the children’s game duck, duck, goose.
Reference
Wikipedia
Search Engines
Bing
blekko
DuckDuckGo
Google Search
ixquick
Wolfram Alpha
Yahoo!
Yippy