On ZDNet:
Scan for Viruses at the Gateway
Personal firewalls, more convenience or more security and finding the right balance.
At last, real Wireless LAN security
Choosing a Wireless Solution based on 802.1x and EAP (French)

On TechRepublic:
Choosing a Wireless Solution based on 802.1x and EAP (English) ZDNet version

On TechProGuild:
Building a robust and Manageable DHCP infrastructure
Understand how to design a secure firewall policy
Increase firewall protection with a better network topology
Recovering an Exchange server in 30 minutes with disk imaging
Use VLAN trunking and Gigabit Ethernet for smarter multihoming