Tech
Cross Platform Mobile Frameworks
React Native, Flutter and Xamarin are most interesting to me. It is a hard task to create the holy grail framework across products you have no control over, but they seem to do it pretty well.
Blockchain
A secure decentralized tech for alt-currency tech, its quite amazing what netgineers have done with it. Notably cryptokitties and for music artists Ujo.
Interplanetary File System
Peer-to-peer for the web. No more central servers dictating uptime. More security features. View on github.
Linux Containerization
These Linux kernel additions have proven very useful in the DevOps world, but also has a role to play in software development and testing. Notable mentions are Docker, LXC, and Kata Containers.
Reactive Extensions
Interesting, misunderstood tech (not the javascript web framework). The short version goes like "Using the observable pattern on streams". There is some math behind it all.
Fuzz Testing
A penetration testing technique that turns out to be amazing at finding software bugs. Notably, AFL, a project from a google employee with an impressive trophy case.
Phoenix Framework and Elixir/Erlang
This promises to be a modern, ruby-like, easy to use web framework that delivers the scalability and stability of the erlang virtual machine.
Keybase
A nice solution for managing encryption and keys. Has a auto-encrypt file system and a chat client.
Books
A New Earth
An amazing book on consciousness and your purpose. Really formalizes subjects mentioned in Eckhart's first book the Power of Now. This is my goto read on public transit because the presence of his writing cuts through so much noise.
Cracking the Coding Interview
Found this book to be very useful, good example problems and content. Use just for your own enjoyment of solving if your not interviewing.
Tao Te Ching
An ancient Chinese text that loosely means "The way" however the nature of "Tao" is that it is unknown and cannot be translated. The Stephen Mitchell translation is recommended for westerners.
Illusions: Adventures of a Reluctant Messiah
An interesting story, recommended by a few sources to me.
RxJava for Android Developers
If you were confused about Rx or RxJava, this book does a great job of a practical explanation. Its still in early access as of 12/20/17.