Freenet

Freenet makes it easy to publish and follow what others publish with strong privacy protections.

Plugins built on its decentralized data store make it very easy to host your own website and provide microblogging and forums, media sharing from files to video-on-demand and decentralized version tracking, blogging and spam resistance without central authority.

For an easy start you can join the global Opennet. For maximum privacy, connect to your friends and build a friend-to-friend network independent of and invisible to any centralized server. To access the global network, you either need some friends who also connect to opennet, or use the Shoeshop plugin to build a sneakernet that can even bridge separate friend-to-friend networks when your regional internet itself gets severed from the global information network.