If you are interested in mathematics, the following web pages might prove interesting.
A Home Page for the Axiom of Choice Should every set theory axiom have its own home page?
Algebraic & Geometric Topology Sister publication to Geometry and Topology
Homology, Homotopy and Applications
Thomas Jech One of the big living names in axiomatic set theory.
New York Journal of Mathematics Claims to be the oldest online journal of general mathematics.
Set Theory Page Links to other set theory resources. Sadly, many of them don't work.