Date: March 24th, 2018 10:01 PM
Author: glittery church
https://www.facebook.com/events/481621582177570/
https://www.facebook.com/events/313381899087517
Blockchain at Berkeley's reading materials are very informative for learning the fundamentals in depth. The first one is for Ethereum and the second one is for Proof of Stake.
(http://www.autoadmit.com/thread.php?thread_id=3928108&forum_id=7#35680608)