A complete guide to using ModSecurity, this book will show you how to secure your web application and server, and does so by using real-world examples of attacks currently in use

OpenDNS offers FREE Web content filtering across more than 30 categories as a service for your network.

ScanSafe Anywhere+ is a very cool web security service which is intended to provide web content security for roaming users.

The YOGGIE Pico Personal Security Server runs of an USB port and provides more than a dozen security features.No larger than a regular USB thumb drive, Yoggie Pico runs a custom Linux distribution and it packs almost all security functionality you could find in a large corporate network.