The Association for Computing Machinery (ACM) was founded in 1947 as an international scientific and educational organization dedicated to advancing the art, science, engineering, and application of information technology and serves both professional and public interests.
The Geometry Center is a mathematics
research and education center at the University of Minnesota.
The Math Archives
provides organized Internet access to a wide variety of mathematical resources
with primary emphasis on materials which are used in the teaching of mathematics.
National Council of Teachers of Mathematics (NCTM) is a nonprofit professional association whose purpose is to improve mathematics education for all students in the United States and Canada. Composed of more than 120,000 teachers, educators, and other professionals, it is now the largest mathematics education organization in the world.