A short introduction to how bitcoin Works.
Want more? Check out my new in-depth course on the latest in bitcoin, Blockchain, and a survey of the most exciting projects coming out (Ethereum, etc): https://app.pluralsight.com/library/courses/bitcoin-decentralized-technology
Lots of demos on how to buy, send, store (hardware, paper wallet). how to use javascript to send bitcoin. How to create Ethereum Smart Contract, much more.
Written Version: http://www.imponderablethings.com/2014/04/how-bitcoin-works-in-5-minutes.html
Less technical version: https://www.youtube.com/watch?v=t5JGQXCTe3c
Donation address: 1K7A6wsyxj6fThtMYcNu6X8bLbnNKovgtP
Germain caption translation provided by adi331 : 19s6rqRfHa19w7wcgwtCumPs1vdLDj1VVo (thanks!!)