How to integrate OSSEC with Nagios using NRPE to keep an alerting eye on all your infrastructure.
Tutorial on how to display maximum information on an eee Netbook with a conky configuration.
Tutorial on how to get the most out of Screen, enabling screen sessions automatically on boot.
Tutorial on how to install and configure Ubuntu 10.04 on Asus eee 1001p, so the hardware works properly.
My review of the exceptional manual on social engineering The Art of Deception, written by Kevin Mitnick.