CanDo is a web-based, freely distributed skills-tracking program. Developed in Arlington, Virginia, it was written as a tool to help teachers track which skills their students are acquiring in their classes, as well as how competent they are with these skills. As a piece of open-source software, CanDo is available completely free of charge.

For more information, look through these links (All are also accessible on the sidebar to the left):

CanDo FAQ; more in-depth information on the CanDo project may be found here
Contact info; contacts of leading CanDo developers
Developer's info; read this if you are a CanDo developer or think you might want to become one
Funding; everyone who has donated to the CanDo project
Screenshots of CanDo and SchoolTool