Google Voice cheatsheet

http://www.coolgeex.com/google-voice-quick-reference-guide-v2-0/

Remote upgrade an Etch server to Lenny

http://www.howtoforge.com/how-to-upgrade-debian-etch-to-lenny

Install Mac fonts on Linux

http://www.junauza.com/2010/01/how-to-install-and-use-mac-fonts-on.html

Add two-factor authentication to OpenVPN

http://www.howtoforge.com/how-to-add-two-factor-authentication-to-openvpn-as-with-the-wikid-strong-authentication-server

Build a USB DVD drive on the cheap

http://hackaday.com/2010/02/02/usb-hdd-enclosure-to-dvd-connector/

Traffic analysis in Lenny

http://www.howtoforge.com/trafficanalysis-using-debian-lenny

Implement mirroring in software

http://www.cyberciti.biz/faq/linux-creating-software-raid-one-arrays/

Replicate and/or migrate IMAP accounts

http://www.howtoforge.com/how-to-migrate-mailboxes-between-imap-servers-with-imapsync

Hardware review resources

http://www.makeuseof.com/tag/5-computer-hardware-review-sites-for-the-pc-enthusiast/

A Karmic PXE server

http://www.howtoforge.com/setting-up-a-pxe-install-server-on-ubuntu-9.10

Redirect ports using iptables

http://www.cyberciti.biz/faq/linux-port-redirection-with-iptables/

Quick solutions for Snow Leopard annoyances

http://www.techradar.com/news/computing/apple/20-snow-leopard-annoyances-solved-666067

Using ramfs and tmpfs

http://www.linux-mag.com/cache/7689/1.html

New to Debian?

http://www.aboutdebian.com/

Running VirtualBox headless on Karmic

http://www.howtoforge.com/vboxheadless-running-virtual-machines-with-virtualbox-3.1-on-a-headless-ubuntu-9.10-server

Free Linux administration eBook

http://www.cyberciti.biz/tips/gnulinux-advanced-administration-pdf-book.html