You already saw Google Chrome's humorous about:internets Easter egg, but reader nettleman points out that Chrome's got several special
about: pages that reveal all sorts of interesting information about what's going behind the scenes. Here's the full list, with screenshots.
Update: Mawin adds that you can also go to two special pages on a per-site basis.
view-cache:[URL] shows you some under-the-hood cache details, and
view-cache:[URL] shows you the page's markup. (Though you can view source by just right-clicking on a page and choosing, um, "View page source.")
You Mac and Linux users, here are some about: page screenshots:
Find anything interesting in Chrome's about: pages? Let us know in the comments.