Not only a search engine but gives you a definition of what you're searching for and an enclyopedia reference.
Has a safe search feature to exclude adult websites.
Search engine from Microsoft
Yahoo-powered search engine that donates revenues to a charity of your choice
Search non-commercial parts of the Internet
Removes the top 1 million popular websites so you can discover more sites
Guide to search engines, portals, and directories
From Danny Sullivan, the search engine expert.
All about search engines from how they work to fun facts
See how you website looks to search engines.
Searches social media sites
Kid-friendly search engine.
Searches older basic websites.
Computational knowledge engine. It uses a number and data driven approach. From the same company the created Mathmatica. I mines databases and performs computations on those facts giving you original data as the result. It does not give you links to exist