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Mathematics search engines and directories

Math Forum Internet Mathematics Library - Resource for teachers, students and parents looking for web sites across the Internet on math topics.

Math Links Library - Searchable library of mathematics and math-related web links.

Mathematical Resources on the Web - From the University of Florida.

Mathematics Information Servers - Mathematics web sites around the world.

Mathematics WWW Virtual Library - Directory of Mathematics-related resources.

MathGuide - Subject gateway to scholarly relevant information in mathematics, located at the Lower Saxony State- and University Library, G?ttingen (Germany). Resources are described and evaluated with a set of Dublin Core metadata.