Isn’t that diagram spiffy? OK, I’ll be the first to admit, there’s nothing that exciting about the image here. What I do find quite interesting is that it was dynamically created by a web service through the simple use of an <img> tag.
The text representation of the diagram can certainly be cryptic and complex, and you’d hardly want to use this for a very large UML diagram, but for blog posts where you want to highlight some design aspects, it can sure be a useful little tool. Check out some other samples using the tool.