Crabgrass is a software libary web application designed for social networking, group collaboration and network organizing. Our goal is to create communication tools that are tailored specifically to meet the needs of bottom up grassroots organizing...

BigBlueButton is an open source web conferencing system that enables universities and colleges to deliver a high-quality learning experience to remote students.

GateIn portal is a merge of two mature projects that have been around for a while, JBoss Portal and eXo Portal. It takes the best of both into a single new project. The aim is to provide both an intuitive portal to use as-is and a portal framework to build upon depending on your needs.

Mahara is an open source e-portfolio system with a flexible display framework. Mahara, meaning 'think' or 'thought' in Te Reo Māori, is user centred environment with a permissions framework that enables different views of an e-portfolio to be easily managed. Mahara also features a weblog, resume builder and social networking system, connecting users and creating online learner communities.

 This web site lets people post their environmental cleanup experiences. Whether you go to a beach, to a picnic, or on a hiking trip, think about how to bring some trash back home from the outdoors...