http://puzzlemaker.school.discovery.com/
John Golden's Math Links
http://faculty.gvsu.edu/goldenj/mathed.html
MegaMath
http://www.c3.lanl.gov/mega-math/
Frequently Asked Mathematics Questions
http://db.uwaterloo.ca/~alopez-o/math-faq/math-faq.html
Escher - Art & Tesselations
http://www.mathacademy.com/pr/minitext/escher/
Math & Real Life
http://www.learner.org/exhibits/dailymath/language.html
Math History Websites:
Math History
Contains the biographies of more than 1000 mathematicians, as well as histories of various mathematical topics.
http://www-groups.dcs.st-and.ac.uk/~history/
Women in Mathematics
http://www.agnesscott.edu/lriddle/women/women.htm
Math in the Middle Ages
http://www.math.tamu.edu/~don.allen/history/mideval/mideval.html
http://www.math.tamu.edu/~don.allen/history/arab/arab.html
http://www.museums.reading.ac.uk/vmoc/algebra/section3.html
http://members.aol.com/bbyars1/algebra.html
http://library.thinkquest.org/22584/emh1300.htm
http://www.roma.unisa.edu.au/07305/medmm.htm
http://aleph0.clarku.edu/~djoyce/mathhist/chronology.html
Earliest uses of mathematical words
http://members.aol.com/jeff570/mathword.html
Quotations from Mathematicians
http://math.furman.edu/~mwoodard/mquot.html
Euclid's Elements
http://www.sunsite.ubc.ca/DigitalMathArchive/Euclid/byrne.html
http://aleph0.clarku.edu/~djoyce/java/elements/elements.html
Four Color Theorem
http://www-groups.dcs.st-and.ac.uk/~history/HistTopics/The_four_colour_theorem.html
http://www.math.gatech.edu/~thomas/FC/fourcolor.html
http://lvph.sfos.ro/departamente/matematica/articole/page_5.php
http://www.uwinnipeg.ca/~ooellerm/guthrie/FourColor.html
http://www.pha.jhu.edu/~grohn/4ct2.html
http://www.sciencenews.org/sn_arc97/1_4_97/mathland.htm
http://bhs.broo.k12.wv.us/discrete/4Color.htm
http://www.cs.uidaho.edu/~casey931/mega-math/gloss/math/4ct.html
Animated Pythagorean Theorem Proof
http://www.usna.edu/MathDept/mdm/pyth.html