debaday has interesting Debian packages posted (almost) daily.
The Debian FAQ is always a good place to look.
http://newbiedoc.sourceforge.net has lots of intro user and admin tips
http://www.linuxmafia.com/faq/Debian/installers.html has notes on dozens of debian linux installer choices
http://www-106.ibm.com/developerworks/library/l-clustknop.html?ca=dnt-61 - article about load-balancing with ClusterKnoppix