Bitcoin.org
Game Theory and Bitcoin
What determines the value of Bitcoin?
Fidelity - Why investors need to consider bitcoin separately from other digital assets?
The Bitcoin Standard - Audible.com (free PDF The Bitcoin Standard)
Audible library about BTC
Asic Miner Profitability
What Is Bitcoin Mining?
How Does Bitcoin Mining Work?
YouTube video explaining how mining works
Live Asic Miner
What Is the Lightning Network?
YouTube video explaining the Lightning Network
Tracking bitcoin addresses used by ransomware, blackmailers, fraudsters, etc.
BitcoinAbuse.com