Now you are in the subtree of TECHNOLOGY and MARKETS public knowledge tree. 

Overview of Blockchain & Distributed Ledger Technology

The technologies that underlie how Blockchain Works

Part One (Introduction)
https://medium.com/@SathGanesarajah/building-blocks-part-one-1e01750a074

Part Two (How the Internet Works - Since Blockchain is built 'on top')
Building Blocks — Part 2.1
What is the Internet?

Part Two.Two
Building Blocks — Part 2.2
What is the Internet? — Part Two
(How the Internet Works Continued - Framwork required to Think about Blockchain 'stack')

The relevance of Blockchain

Why Blockchain is Hard
Blockchain is useful only in the right context

Social and economic aspects of Internet

How the Internet Turned Bad