Interesting pages at Cambridge:
Index Page
Cosmic Strings
More Cosmic Strings
Topological Defects in Cosmology
Cosmology, Black Holes & Quantum Gravity

Interesting pages at the Garching Astro Max Planck Institute :

Cosmology Group

Berkeley

The Marc Davis Group
CMB Group

UPenn

UPenn Groups

Experiments

COBE Home Page
Links to CMB Experiments

Cosmic Microwave Background Stuff

CMB Software at UPenn

NCSA Cosmos

NCSA Software Gate
Just for the heck of it, here is a link to some relativity/gravity/black hole codes.
I'm interested in all sorts of cosmological/gravity/black hole-codes. If you have any suggestions please contact
Rolf Schimmrigk (netah@th.physik.uni-bonn.de)