Reference

Reference is a category for sites devoted to the study of and access to information itself - teaching it (Education), using it (Knowledge Management), storing it (Libraries, Museums) - or sites containing information on topics varied and comprehensive enough that they could not be classified under the other top level Open Directory categories (Dictionaries, Directories, Encyclopedias).

• Top/Science/Reference/Units of Measurement/Online Calculators
• Top/Kids and Teens/School Time/Reference Tools

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