SCT (Sphene Community Tools) is a collection of Django applications that are designed to be easily pluggable into any Django project. It currently consists of a Wiki and a Board application. It contains an example project that allows users to create a community Web site containing the Wiki and Board applications without any further coding/configuration changes.
PluggedOut Blog is a script you can run on your Web server to give you an online multi-user journal or diary. It can be used equally well for any kind of calendar application. Rather than give you a thousand things you don't really want, it provides the essential diary or journal functions that most people are going to need. PluggedOut will work with your site layout instead of forcing you to use a predefined layout. The blog is easily extended with custom plugins.
Ryan's Electronic Diary Sheet (a.k.a. RyansEDS) is a Web-based Perl application which allows members of an organization (typically staff) to inform each other of their proposed whereabouts. It is designed to be a simple shared calendaring application which does not require complex (and often proprietary) client/server software. The diary sheet works on a week by week basis and stores its data accordingly. A shell script (batch file) is supplied that (when run as a scheduled event/cron job) will clear out data older that your chosen limit. Thus data storage is kept to a minimum. The diary sheet itself also has a feature that will prevent users from going too far forward or backward.
OgOg.org is a Web application and site. On OgOg.org, you can rate RSS posts and receive good rankings and extra voting power when your own posts are rated as being good. You can carry your user-ranking and voting power over to other sites via OgOg's API (and your OpenID). OgOg attempts to be a useful hub in the sifting and ranking of blog posts.
Joomla! is an award-winning content management system (CMS) that can help you build Web sites and other powerful online applications. The JumpBox for Joomla saves a great deal of time by capturing the experience of a skilled IT admin in a package that's very easy to use and provides a production quality Joomla! installation very quickly. This JumpBox is for the Joomla! 1.0.x series of releases. A JumpBox for Joomla 1.5.x is also available.