Kerntype is an amazing HTML5 website that make kerning typefaces into a fairly competitive game. It's been making it's rounds in the office and I find it amazing that such a simple game can grab so much (well deserved) attention. Even it's own company wide leader board.
The web has evolved tremendously over that last couple of years with new technologies that have enabled developers to build some pretty amazing sites. This shift has made construction of these sites easier, but also adds complications in other aspects such as hosting environments, performance and portability. Depending on the requirements of the project at hand, you can utilize new open source tools to build dynamically generated sites in static HTML files. Leaving you with a lean / mean barebones site that can do some interesting things.