Webgen - How Zed Shaw managed to be slashdotted/reddited/yc.newsed and survive
webgen.rubyforge.org
webgen.rubyforge.org
I guess the real story here is that many people have become so accustomed to using dynamic techniques (with the added benefit of no caching whatsoever) and/or the world's slowest Web server software to serve essentially static content, that they don't even see the overhead.