I have made a demo page for the PHP tree script I made a while ago. I modified it so that it includes something you type in the field inside the image. I chose just about the simplest way to incorporate random text, but it looks kind of neat.

Make your own tree at
http://www.sproutworks.com/treedemo.php

For those interested in how this works, the basic of this program is a function that draws a branch, given the color of the branch, and it's starting coordinates. The branch is drawn by chooing random directions in which to grow the branch. Randomly, new branches are started.

The function does not run truely recursively. I was having problems with the level of recursion, so I simulated a stack with a simple array of coordinates, and called the branch function in a loop.

I found this to be an interesting program to write, and there are many ways to expand this program. It would fit well with hierarchical structures, such as sitemaps, or directories. I also have an idea for an image that represents the growth of a blog.