Chris Double has set up a Factor server that anyone can play around with. Factor is interesting because it has a development environment completely built on web browsers with inspectors, browsers, and editors - so you can change everything via a web browser, including the running code of the server. However, it's not like Zope - so a CMS interface. Instead, they are rather Smalltalk-oriented tools, that is, low-level programming tools. Very nice overall. The language also strikes a chord with me: a mixture of Joy, Lisp, and Forth. Given my affinity for Lisp and Forth, it's clear that I have to engage with something like this. At Planet Lisp you can find the original article.