My webserver of choice is nginx, it's resource friendly, fast, reliable and versitile.
I have a resource constrained Debian 6.0 "server" at home and wanted to deploy nginx on it for testing. Sadly, the nginx package in the squeeze repositories is very old. Fortunately, the Debian Backports has a fairly current version, 1.2.1 as the time of writing.
To enable the backports repository add the following line to
deb http://backports.debian.org/debian-backports squeeze-backports main
Update the repositories.
sudo apt-get update
Install nginx. All backports are deactivated by default, so the
use is somewhat different.
sudo apt-get -t squeeze-backports install nginx-full
nginx is now installed and can be configured in the usual way.