Ancient Mathematics - Library of Congress, Vatican Exhibit. Includes articles mainly about Greek Mathematics. History of mathematics. By David A.R. Wallace, Glasgow. Earliest Known Uses of Some of the Words of Mathematics - Shows who coined a wide variety of mathematical terms, or in some cases only the earliest known use of the word.
Research is ongoing and the pages are frequently updated.
Hilbert's Problems - Article in the Platonic Realms. Lists Hilbert's 23 problems posed to the 1900 Congress. Historia Matematica - Mailing list moderated by Julio Gonzalez Cabillon. Part of the Mathematical MacTutor. History of Mathematics.