Spe is a python IDE with auto-indentation, auto completion, call tips, syntax coloring, syntax highlighting, class explorer, source index, auto todo list, sticky notes, integrated pycrust shell, python file browser, recent file browser, drag&drop, context
A sophisticated technique allows all users to type anywhere in the text without locking parts of the text for other users, making SubEthaEdit just as easy to use as a traditional text editor.
Wikalong is a FirefoxExtension that embeds a wiki in the SideBar of your browser, indexed off the url of your current page. It is probably most simply described as a wiki-margin for the internet.
Modification of the delimind script to insert a hierarchical structure of subtags when tags are contained one in the other, and connecting together equivalent branches. Shameless self promotion (but is a new blog!)
Skaringa is an API for Java and XML language binding. It transforms Java objects into XML documents and back, and can generate XML schema definitions for a Java class. Typical applications are data exchange, object persistence, object transformation