Very Quick Wiki is a Java Server Pages based WikiWikiWeb clone. It's goal is to be as lightweight but as functional as possible. It is deployed by dropping a single war file into any J2EE web container without any extra installation processes.
WPCleaner is a small portable tool designed to help on maintenance tasks (mainly disambiguation and check) on Wikipedia. Source code has been moved to github https://github.com/WPCleaner/wpcleaner