The Virtual Currency: Bitcoin

The Virtual Currency: Bitcoin  http://www.bitcoin.org/

https://en.bitcoin.it/wiki/Trade

https://en.bitcoin.it/wiki/FAQ#How_can_I_get_Bitcoins.3F

https://en.bitcoin.it/wiki/Main_Page

https://en.bitcoin.it/wiki/Block

https://en.bitcoin.it/wiki/File:Total_bitcoins_over_time_graph.png

http://bitcoincharts.com/markets/

The Cryptography of Bitcoin
https://www.pluralsight.com/guides/software-engineering-best-practices/the-cryptography-of-bitcoin