My first Corewar Webpage: links section

koth.org - home to Corewars, has active hills and useful links.
Christoph Birk's infinite hills contains hills with sources of all included warriors.
Tiny Hill, Metcalf's favourite.
KOTH@SAL holds LP, tiny, beginner's and tourney hills. Created by Joonas and Barkley.
Sourceforge yellow hills site hosts beginner's hill, evolved tiny, tiny and standard 8000 cell, multiwarrior and big hills. Home to Hofmann's corewar interpreter (though not quite a redcode worth a closer look).

John Metcalf, The Corewar Historian, included on his webpage few texts about corewar history, IRC logs and information about Sunday IRC corewar tournament.
Fizmo's Ultimate Corewar Page, home to current corewar tournament & source of useful links. Frequently updated.
Joonas Pihlaja's webpage holds self-organizing maps and few tools.
Christoph Birk's webpage is not only the home of Koenigstuhl but also a great source of tutorials and links.
Will Varfar on his webpage published a nice overview of redcode interpreters. Also, you can find lot of information about evolved warriors there.
Philip Thorne created webpage with a stone analysis and few useful links.

pmars - standard redcode interpreter. Grab its current version from Anton Marsden's development site.
Joonas' SDL port works under Linux and on Windows box as well. Featured with really nice graphics display. Joonas also programmed a very fast redcode interpreter called Exhaust which is easy to embed in your own programs.
Martin Ankerl's qmars is very fast redcode simulator.
Redcoder developed by Will Varfar is at-early-stage-of-development Widows redcode interpreter with graphics display.
Chip Wendell created a native Windows redcode interpreter called Corewin. It is not only a pmars port but also an editor and benchmarking program. All you MS Windows users, check this out.