Example image of eyePlorer eyePlorer map for 'Search engine (computing)': Computer Information retrieval Information overload Web search engine World Wide Web Interface (computer science) Web search query Concept Document Syntax Natural language Whitespace (computer science) Query expansion Authority Bibliometrics Popularity Probability Relevance feedback String metric Boolean Index (search engine) Metadata Computer data storage Search engine results page Cache Metasearch engine Emanuel Goldberg CiteSeer Find Sphinx (search engine) United States government document search tools Veronica (computer) Visual search engine Archie search engine Audiogalaxy Meltwater Group Steve Lawrence (computer scientist) Opencola (company) Rog-O-Matic Darkbot Wide area information server Preprint GobiernoUSA.gov Polytope Hit Search engine (disambiguation) Optical Society of America Larry Page Perst Digital library