University of St. Andrews (UK)
University of St. Andrews: Mac Tutor History of Mathematics Archive
The University of St. Andrews, Scotland, presents hundreds of biographies of famous mathematicians, histories of math in various cultures, and interesting facts on the development of important math concepts. This is a huge reference....
PBS
Pbs: The Story of India: Ancient and Medieval Mathematics in India
Describes India's contribution to mathematics.
Islami City
Islamic History: Arabic Numerals
Considers the origin of our "Arabic," system of number notation as probably having originated in India. Has illustrations demonstrating how much less cumbersome this system is than Roman, Egyptian, or Greek numeration.
Khan Academy
Khan Academy: Arts and Humanities: Art of Asia
A landing page for a course on the art history of Asia.