Useful R resources
- Additional R resources at http://www.r-project.org/ , see 'books', 'manuals', for:
 - Statistics: An Introduction using R by MichaelĀ J. Crawley - A nice intro by a famous ecologist.
 - Mixed effects models in S and S-plus by Pinheiro and Bates - This is now outdated due to Bates' new lme4 package, but the theory is still good.