c-base e.V. is a non-profit association located in Berlin, Germany. Its purpose is to increase knowledge and skills pertaining to computer software, hardware and data networks. The association is engaged in numerous related activities. For example, the society has had stands at large festivals, such as Children's Day, where they introduce young people to topics like robotics and computer-aided design.

Freifunk is a non-commercial open grassroots initiative to support free computer networks in the German region. Freifunk is part of the international movement for a wireless community network. The initiative counts about 400 local communities with over 41,000 access points. Among them, Münster, Aachen, Munich, Hanover, Stuttgart, and Uelzen are the biggest communities, with more than 1,000 access points each.