- Linux Foundation net wiki [1]: Random bits about networking in linux kernel. - kernel/doc dir: Random bits of info. - "Understanding Linux Network Internals" by Christian Benvenuti: A bit outdated they say, full of gory details :). - "Where linux documentation hides" by Rob Landley [2]: Hints on where to look for more info about anything in the linux kernel.
[1] http://www.linuxfoundation.org/en/Network [2] http://ols.fedoraproject.org/OLS/Reprints-2008/landley-reprint.pdf
