Cryptography:
Nuts and Bolts of Encryption: A Primer for Policymakers
A very good introduction to encryption.
A Self-Study Course in Cryptanalysis
by renowned security technologist Bruce Schneier
Modern Crypto
Forums for discussing modern cryptography
General Privacy:
Cryptocurrencies, Blockchain, and ICOs explained
Tips for maintaining privacy online
Although written for developers there is good information here.
Going Dark
Online privacy and anonymity for normal people
Diceware Passphrase
The new standard in strong, easy to remember passphrases
UCSD Study and Suggestion to Use ATA Secure Erase
Testing Apple’s Disk Utility
Apple’s Advice on SSD’s
EFF on Securely Deleting Data in Mac OS X
Securely wiping the hard drive on your computer used to be easy with many many available utilities. But now with SSD’s (Solid State Drive) it’s not so easy to be sure all your data is unrecoverable. Listed here are several article’s addressing the issue.
Firefox Configuration for Privacy Freaks
Messaging:
VPN
That One Privacy Guy
A comprehensive overview of VPN providers.
What to look for when chosing a VPN
DNS Leak Test
Does your VPN run their own DNS servers? You can find out here.
One-Time Pad