Steal This Page
In-situ page editor, dhtml stylee. I knew someone somewhere must have attempted something like this, dissatisfied with the MS DHTML Editing Control and WYSIWYG editors in general. Finally I started writing one myself and in the process turned this up with a search for "dhtml bookmarklet text selection". This is very cool, and provides a great starting point for what I really want to see - a sensible, configurable wysiwyg editor/environment for basic page updates and changes.