This is actually from July 2009. Not that it matters all that much as I'm sure it is still useful but I thought I should point it out.

Sure is! :) Just found out about it earlier today and it'll come in handy for a site redesign I'm doing, thought I'd spread the word.

Neat. This reminds of a prerequisite charts for university courses[1,2].

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[1] http://www.texample.net/tikz/examples/labs-schema/ [2] http://www.texample.net/tikz/examples/prerequisite-chart/

You've just reminded me of the time I spent parsing through university course books -- what a nightmare; I have to assume these days they've improved on the process of 'look up course #, turn to the back of a separate book, dig through an array of numbers and hope for the best..'

Somehow through it all I ended up in three calculus courses simultaneously and decided university wasn't for me.

That's beautiful, also the fact that you think about restful url's beforehand is a big plus. It's also good to think about the language/terms that you want to use throughout your application.

Are site maps still a thing? I don't remember the last time I actually saw one. Still pretty nice though, lots of other users for this type of chart.

I'm about to use it for documentation and reference purposes.

It feels like a great tool for that

Not just "sites;" I can see this being great for some API's topology.