Why use a single search engine when you can use a Meta? All web search engines are based on algorithms --complex series of lexical orders -- when they are combined, they may actually compete/delete results from some searches. Combining results from two or more engines assures the researcher of a more complete list of informative websites.
St. Louis Community College Libraries
Florissant Valley Campus Library
Forest Park Campus Library
Meramec Campus Library
Wildwood Campus Library