Philip Thorne's Corewar Introduction can be found at http://home.pipeline.com/~corewar and has been reporting the latest tournament news since 2002. The homepage has a handy selection of links for Corewar beginners.
What really make's Phil's site stand out is the unique content. There are two useful tools, RSS feeds for the KOTH hills and a Redcode syntax definition for VIM. The RSS feeds are updated daily.
Phil's Stone Analysis article has a thorough examination of 13 stones, comparing everything from speed and coverage to the type of core-clear. Unfortunately, I didn't understand all of the figures in the table - a key would be helpful.
Finally, Phil has published a selection of warriors. The layout here is almost perfect! The warriors are presented in an interactive tree structure and the warrior files are displayed with syntax highlighting.
What I liked:
- The Stone Analysis article
- The presentation of warriors
Room for improvement:
- A key to help interpret the Stone Analysis table