Common Equivalent Weights and Measures
Inches, centimeters, feet, grams, pounds, liters, quarts, kilometers and more.

How Many? A Dictionary of Units of Measurement
Information on unusual units of measure, from land measurements to grit sizes to intervals of time.

ipl2: Resources by Subject 
Links to almanacs, dictionaries, encyclopedias and more, contributed by the Internet Public Library and Librarians' Internet Index.

iTools
Collection of resources including maps, directories, and currency converters. Especially useful are the language tools: English dictionary, pronouncing dictionary, thesaurus, translator, language identifier, conjugator and acronym finder.

Sports Reference
A comprehensive site for statistics on major U.S. sports.

Thomas Register® of American Manufacturers
Information on U.S. and Canadian manufacturers. Offers important information on potential suppliers, competitors, and customers.