An overview of why Einstein added an extra term in general relativity, and why it is still examined.
A set of hypertext based services for general relativity research provided by the QMW Relativity group.
Rob Salgado's bookmarks
The purpose of this Contest is to prove General Relativity using a (simple) algorithm.
A Mathematica package for doing tensor calculations in differential geometry and general relativity.
Profile of Albert Einstein, with additional teaching resources, Shockwave demonstrations, and animations of relativity concepts.
A popular site with interactive demonstrations of gravitational lensing. The background material is at a graduate level
A two part overview of the Shapiro radar bounce test of general relativity. (The two parts consist of a section for normal people, and one for nerds)
Includes links to online journals, news and preprint archives, as well as lists of faculty at this university.
This is a Mathematica notebook showing how to plot light cones in two plus one spacetime dimensions with a point mass.