“Everyday, we look at dozens of websites. The structure of these websites is defined in HTML, the lingua franca for publishing information on the web. Your browser’s job is to render the HTML according to the specs (most of the time, at least). You can look at the code behind any website by selecting the ‘View source’ tab somewhere in your browser’s menu. (…) I’ve written a little app that visualizes such a graph, and here are some screenshots of websites that I often look at.” (WebasGraph app by Aharef) – courtesy of edwardtufte