Fractals in D3: Dragon Curves by Stephen Hall.
From the post:
This week I am continuing to experiment with rendering fractals in D3. In this post we’re looking at examples of generating some really cool fractals called dragon curves (also referred to as Heighway dragons). This post is a continuation of the previous one on fractal ferns. Take a look at that post if you want some basic info on fractals and some links I found useful. Fractals are a world unto themselves, so there are plenty of interesting things to be investigated in this area. We are just scratching the surface with these two posts.
Great images, complete with source code and explanation.
See the Fractal entry at Wikipeida for more links on fractals.