Reference

the vserver project:
linux-vserver.org/

irc channel - the IRC channel is very useful, the kernel developer Bertl hangs out there all the time and is probably the most friendly and helpful kernel developer I have ever had the pleasure of interacting with. He is incredibly patient with the most n00b questions.
irc.oftc.net, channel #vserver
IRC logs: irc.13thfloor.at/LOG

vserver article:
www.freesoftwaremagazine.com/free_issues/issue_05/focus-linux_vserver/

vserver configuration (all the variables you can configure in /etc/vservers), this is called "the flower page", and is easier to read if you change the stylesheet, or look at the second url: www.nongnu.org/util-vserver/doc/conf/configuration.html red.eggplantmedia.com/~arthur/micah.html

gentoo documentation (good docs):
gentoo.home.xnull.de/doc/en/vshandbook/index.xml?part=0&chap=0

the vserver "paper" (good overview of everything): linux-vserver.org/Linux-VServer-Paper

some other docs:
www.solucorp.qc.ca/miscprj/s_context.hc

vserver+debian quick howto:
lena.franken.de/linux/debian_and_vserver/vserver.html