MSTE, The Office for Mathematics, Science, and Technology Education, is a division of the College of Education at the University of Illinois at Urbana-Champaign. The goal of MSTE is to serve as a model-builder for innovative, standards-based, technology-intensive mathematics and science instruction at the K-16 levels.

Model Chance, a project to develop simulation software and classroom activities to help middle school students learn about probability.

Mathematicians Pictures.com, a gift shop and web-site for people who love math

Alexa, The Web Information Company, Alexa's Web site is built on the notion that timely and relevant information is essential to a vital web experience.

Designperimeter, an Industrial Design consultancy located in midtown Toronto, Canada.

The Ambigrams of John Langdon, an important contributor to the creation of the eipiphiny symbol, are featured in the film Angels and Demons.