Projects using CodeIgniter (source code available)
CI drop-in authentification system.
Room booking system for schools.
Web-based personal financial management system.
68 Knowledge Base
68KB is a knowledge base script. It was built with the site owner in mind and to be as simple to work with as possible.
Linkster, PHP Link Directory
Growing out of a need for simple categorical organization, Linkster aims to be the simple solution. Specifically built for link directories, such as a collection of your business partners. Demo available here.
WordPress-like blog CMS. In heavy development. Documentation is in Russian only for now.
Planet CI is a Feed/RSS agregator reader using PHP. Its similar to planetplanet but its on perl langguage. Planet CI using codeigniter and simple pie. you can se the demo at planet.ilkom.org.
ExiteCMS (version 8 ) is an application framework that builds on top of CodeIgniter, and adds features like a full administrative backend, multi-site support, an elaborate TRBAC model, workflow, etc. It is fully modular, we are busy making all functionality of the current ExiteCMS version (forums, albums, blogs, etc) available as modules.