Libraries of Math-Applets
Each Website Contains a variety of applets that could be used to develop a wide range of mathematical skills. The applets allow students to work through interactive displays to build a foundation in the following mathematical topics Algebra, Geometry, and Trigonometry.

http://cs.jsu.edu/~leathrum/Mathlets/lines.html
http://www.math.umn.edu/~rogness/mathlets.shtml
http://www.calvin.edu/~rpruim/courses/m162/S02/mathlets/
http://math.mit.edu/mathlets/mathlets
http://math.rice.edu/~lanius/Patterns/