Using Meta-Search Engines
•A meta-search engine is a tool that combines the power of multiple search engines. 
•Some meta-search tools also include directories.
•Because each search engine on the Web has different strengths and weaknesses, you might need to use several individual search engines to perform a complete search for a particular question. 
•Using a meta-search engine lets you search several engines at the same time. 
•Profusion, a popular meta-search engine, routes search terms to more than ten search engines and Web directories.