NASA
Nasa: Al Khorezmi and the Dawn of Algebra
At this site from NASA you can read about Al-Khawarizmi (also known as al-Kwarismi or al-Khorezmi) and his significant role in the early study of algebra.
Other
Arab Physics
While some of the pages on this site have yet to be filled, the pages that are complete are comprehensive. For example, pages on friction, heat, and the Doppler effect are illustrated and explain relevant formulas. A biography page...