The Math Forum @ Drexel University is an online resource for improving math learning, teaching, and communication. They are teachers, mathematicians, researchers, students, and parents using the power of the Web to learn math and improve math education. They offer a wealth of problems and puzzles; online mentoring; research; team problem solving; collaborations; and professional development. Students have fun and learn a lot. Educators share ideas and acquire new skills.
http://mathforum.org/ Français

The University of Regina - Math Central (Français )
http://AboriginalPerspectives.uregina.ca/
http://mathcentral.uregina.ca/index.php
In French @ http://centraledesmaths.uregina.ca/index.php
In Spanish @ http://centromatematico.uregina.ca/index.php

The University of Toronto Fields Institute for Research in Mathematical Sciences promotes research, education and training in cooperation with businesses
http://www.fields.utoronto.ca/

The University of Waterloo Centre for Education in Mathematics & Computing is Canada’s largest outreach organization for promoting and creating activities and materials in mathematics. Its activities include contests, web resources, a large series of publications, and workshops and seminars for students and teachers in elementary and secondary schools across Canada and around the globe.
http://www.cemc.uwaterloo.ca (Français )