A sustainable, decentralized, alternative to the Internet. You can start a local meshnet group called a MeshLocal. A MeshLocal is a group of people interested in building a community-based wireless or wired network. Currently, a MeshLocal connects with other MeshLocals over the Internet, but this will eventually be phased out as physical, longer-distance links are created. This is a new frontier of the Internet.
Find out more about Meshnet Projects on the FLOSS Index.