Jonah is a two-part system for displaying headlines on your site. The backend fetches a list of My.Netscape or My.Userland style channel files, caches them locally, and generates a local html representation for each. The frontend provides an interface for viewing the generated headlines.
PyleWiki is a WikiClone written entirely in Python that allows a group of people to collaboratively edit a tree of webpages using nothing but their browser and a simple, text-based markup language. This particular WikiClone has a few extensions to the original: attachments to pages, user authentication (primitive), and the use of templates for page styling among others.
Taglog is designed for anyone who spends most of their day sitting at a computer, working on various projects. You can make notes about what you do, as you go along, associating them with the projects you work on. At the end of the week you can produce a report of how your time was spent, broken down by project for booking purposes. You can view previous entries, by date, or by project. You can enter the actions you intend to take, associate them with a project, and mark them as active, or complete.
Vanilla is a WikiClone written in REBOL. It is useful for collaboratively working on projects, tracking todo items, managing adresses, and creating Web logs. All page editing takes place in the browser. Vanilla features a simple templating system, a full-featured user and session management system, and an extension architecture for writing simple Web applications in REBOL.
Monaural Jerk is a journal or "weblog" system that allows single or multiple authors to easily post content to a Web site. Many standard weblog features have already been implemented including organization of content into (multiple) categories, pagination, calendar-based navigation, "edit this page", "send this to a friend", searching, syndication, and more.