You mention a bunch of good, but all of this is "federated" at best.
How about mentioning/discussing some decentralized solutions, such as I2P, Freenet, Bitmessage, Jami, Jitsi, Tox, or even fucking Ricochet?
""Secure"" E-Mail and PGP-derivatives were tinkertoy old hat back in 2003, folks.