From barbed-wire to wood, fences can be decorative or protective, keep animals in or out, and be high or low maintenance. There is a fence for every need and application. Here are some sites to help you choose the best fence for your home.
Compare Fences [Beeson Fence]
The Best Fence For Your Home [CBS]
Fencing Options for Your Home and Property [Ezine]
note: Hewn and Hammered has responded to this post with some great resources for Arts & Crafts style fences, garden gates, and arbors.