Non euclidean geometry

[tudur]

Hi everyone, i have to do a general math project for my math course. It is nothng special, just a proof of a theorem on my choice and a bit of history and interesting facts. I kind of decided to do it on non-euclidean geometry, because it is fun. Now my question: does anybody know a good internet resource which i could use for that purpose?

Thanx

[Tom Mattson]

This one looks like fun:

http://www.math.uncc.edu/~droyster/math3181/notes/hyprgeom/hyprgeom.html