Freenet

Overview
Freenet (also spelled FreeNet) is a decentralized, censorship-resistant distributed data store. Freenet aims to provide freedom of speech through a peer-to-peer network with strong protection of anonymity. As part of supporting its users' freedom, Freenet is free and open source software. Freenet works by pooling the contributed bandwidth and storage space of member computers to allow users to anonymously publish or retrieve various kinds of information. Freenet has been under continuous development since 2000.