Useful web links.
Creating VLANS on Catalyst switches: http://www.cisco.com/en/US/tech/tk389/tk689/technologies_configuration_example09186a008009478e.shtml#create1.
How to create a WIFI hotspot with a MikroTik router and RouterOS: http://www.marlwifi.org.nz/projects/basic-mt-hotspot.
How to enable PHP 5.3+ on Hostgator: http://imdev.in/how-to-enable-php-5-3-on-hostgator/.
How to use the UNIX ed editor on Linux: http://doomersthoughts.blogspot.com.au/2011/07/unix-ed-editor.html.
How to use Powershell on Windows to determine drive fragmentation: Microsoft Technet.
Install Apache2 with MySQL on Debian and create a LAMP server: http://www.howtoforge.com/installing-apache2-with-php5-and-mysql-support-on-debian-squeeze-lamp.
How to change a MySQL user password using the MySQL command-line: http://www.cyberciti.biz/faq/mysql-change-user-password/.
Change Ubuntu Server from DHCP to a static IP address: http://www.howtogeek.com/howto/ubuntu/change-ubuntu-server-from-dhcp-to-a-static-ip-address/. Very useful on an internal network. Good for keeping the same IP address for a specific requirement.
8 deadly commands that you should never run on Linux: http://www.howtogeek.com/125157/8-deadly-commands-you-should-never-run-on-linux/.
Misc web links.
News for nerds, stuff that matters. http://www.slashdot.org.