FilmAffinity is a movie recommendation system where users rate, critique and categorize films and series. The system provides for registered users a list of users with similar ratings.

WikiEducator is a community project working collaboratively with the Free Culture Movement towards a free version of the education curriculum by 2015.

OpenROV is a open-source underwater robot. Its operating system is based on Linux.

Community for amateur Unmanned Aerial Vehicles. This community created the Arduino-based ArduPilot, the world's first universal autopilot (planes, multicopters of all sorts and ground rovers).

The Public Laboratory for Open Technology and Science (Public Lab) is a community -- supported by a 501(c)3 non-profit -- which develops and applies open-source tools to environmental exploration and investigation.

One Community is a 501(c)3 non-profit organization purposed for creating open source and free-shared blueprints for The Highest Good of All. The resources we are creating simultaneously address the foundations of every major challenge our planet is currently facing. The purpose of this comprehensive approach is positive and permanent global transformation though building solution models that create solution creating models.

Actipedia is an open-access, user-generated database of creative activism. It’s a place to share, read about, and comment upon experiences and examples of how activists and artists are using creative tactics and strategies to challenge power and offer visions of a better society.

SAFARI is a research project that purports to study, implement and test an integrated architecture for network design, deploying optimal use of dynamic services over a hybrid IPV6 Ad-hoc network.

Commotion is a free, open-source communication tool that uses mobile phones, computers, and other wireless devices to create decentralized mesh networks. Commotion provides a way for you to share your Internet connection with the people around you, but it is not a replacement for your Internet connection.

PLUG is a research project that studies embedded mobile technologies for the implementation of ubiquitous ambient games from a socio-cultural, economic and industrial point of view.