These are interesting projects, I haven’t fully tested any of them:
- Invidio.us: A complete YouTube proxy/clone (see the launch notes here)
- Mastodon: An open source Twitter replacement
- No More Google: A guide to replacing all of Google’s services
- Saidit.Net: A reddit alternative
- PeerTube: A decentralized video hosting network
- Manyverse: A prototype of an off-grid social network
