
Blockchain Basics: A Non-Technical Introduction in 25 Steps

The publishing of the public ledger is called the “block chain,” because it is a chain of published blocks of information. This innovative process—the block chain—is the foundation for what has wowed the technology community, and impresses me now that I’ve finally understood it.
Robin Chase • Peers Inc
“What problems do blockchains solve?” is like asking “What problems does steel solve over, say, wood?”
Chris Dixon • Read Write Own: Building the Next Era of the Internet
The blockchain and crypto-currency-based protocols and platforms are just enablers for the consensus mechanism. Typically, these are open source decentralized consensus and decentralized trust protocols that enable the irrefutability, verifiability and veracity of all transactions and smart programs.
William Mougayar • The Business Blockchain: Promise, Practice, and Application of the Next Internet Technology
Haseeb Qureshi • We already know blockchain's killer apps
Currently, all existing blockchain protocols have the property that every computer in the network must process every transaction—a property that provides extreme degrees of fault tolerance and security, but at the cost of ensuring that the network's processing power is effectively bounded by the processing power of a single node.