ZIPskinny – Demographic Information on ZIPs and Neighboring Zips
http://www.zipskinny.com/

This site was created as a Web development “hobby” project using Census 2000 data obtained from the Census website. The site provides an interesting “first glance” at a ZIP Code area, but it should only be seen as that — a first glance. It is not a substitute for the more thorough research you should do prior to making decisions about relocating to or conducting business in a particular location. This has been added to Internet Demographics Subject Tracer™ Information Blog.