Math URL's:

Biographies:

http://www-groups.dcs.st-and.ac.uk/~history/index.html

MacTutor History of Mathematics- biographies of mathematicians.

http://www.maths.tcd.ie/pub/HistMath/People/RBallHist.html

Mathematicians of the Seventeenth and Eighteenth centuries.

http://www.agnesscott.edu/lriddle/women/women.htm

Biographies of Women Mathematicians

http://www.chemistrycoach.com/high5.htm#mathematics%20sites%20of

has links dealing with Math- check table of contents (also in the chemistry section of the science page)

other sites:

http://aleph0.clarku.edu/~djoyce/mathhist/mathhist.html

History of Mathematics- historic information and biographies

http://www.webmath.com/index.html

Web math-- assistance with math from general/ personal math to calculus.

http://www.onlineconversion.com/

online conversion

http://www.math.niu.edu/~beachy/aaol/

Abstract Algebra online- site containing definitions and theorems dealing with abstract algebra.