Free Bitcoin textbook from Princeton http://boingboing.net/2016/02/09/free-bitcoin-textbook-from-pri.html …pic.twitter.com/5kjzTjhvih
11:06 AM - 9 Feb 2016
0 replies
8 retweets
10 likes
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.