Regular 4d Polytope Foldouts
- Java applets to view the shapes by rotating them.
- http://www.weimholt.com/andrew/polytope.shtml

Uniform Polychora
- Some images, and the naming scheme that the author has used to categorize over 8000 of these shapes with.
- http://members.aol.com/hedrondude/polychora.html

Uniform Polytopes in Four Dimensions
- Tabulates the convex uniform (Platonic and Archimedean) polychora.
- http://members.aol.com/Polycell/uniform.html

Mark Newbold's Java Stuff
- Java applets that show intersections, morphing, and stereoscopic renderings of four-dimensional polytopes and optical illusions.
- http://dogfeathers.com/java/