I know that some of you are using a firewall and therefor the home pc firewall guide site might be worth a visit. The website has more sections than I can list here so i stick with some interesting ones and leave the rest to you. To start with a good one, Installig Security Products, a guide on how to install security type software on a new windows operating system.
Then we have the Anti-Virus, Anti-Spyware and Personal Firewall Guide which links to lots of review sites and had links to the best products of the market. There is also a linux and bsd section which consists of links to sites that deal with securing those operating systems. If you are looking for security tools make sure you check the site out.

Beginners Guide to Securing a Pc
Zonealarm Pro Firewall 2010 Promotion