Apache Via Symbolic Links in Mac OS X
Every once in a while, you need to have a web application sit outside the "normal" places expected by Apache. Under Mac OS X (and several flavors of Linux), there are safeguards in place to prevent this.
Create a URL shortener
URL shorteners are all the rage. At their core, they have two functions. First, encode an existing complete URL. Second, decode a shortened version of a URL and redirect to the (restored) URL.
PostGIS Odyssey Part 1
For a current (unreleased) project, I was starting to wander into the crazy world of maps. I started out with a very simple model of zip codes represented as points, but I had reached the limits of that approach being effective. I needed polygon data that gave a "truer" representation of what it means to be a zip code.