VOTING THEORY
- Some nice applets by Jeff Brown at UNC-Wilmington.
- Electowiki, a whole wiki just on election methods.
- Election Calculator, an applet to calculate election results using different methods.
APPORTIONMENT
- An apportionment calculator applet (Hamilton, Lowndes, Jefferson, Webster, and Hill-Huntington methods).
- The Constitution and Paradoxes, an interactive article featuring applets.
- The Census Bureau's apportionment page.
- A brief history of apportionment.
- The seven border (frieze) pattern symmetry types
- Java Kali - a program that lets you draw frieze and wallpaper patterns with different symmetry types
- All 17 wallpaper symmetry types, with geometric explanations
- wallpaper symmetry applet
FRACTALS
- Dr. Riddle's IFS page
- The Dynamical Systems and Technology Project at Boston University
- Fractals in nature
- Koch snowflake construction applet
- Koch snowflake construction movie
- Koch snowflake zooming movie
- zoomable Koch snowflake
- Sierpinski triangle construction applet
- zoomable Sierpinski triangle
- Six degrees of Kevin Bacon
- The Oracle of Bacon
- The Internet Mapping Project
- A Facebook network graph
- An applet for finding Euler circuits