Here you can find some resources that I find worth sharing.
On cybersecurity Chiff: more information on Chiff.
 Coursera Information Security: condensed version MSc in informations security I did.
 HaveIBeenPwned: check if you're password is leaked.
 Scattered Secrets: password breach notification service.
On cryptography Understanding Cryptography: good book if you want to know more about how commonly used cryptographic algorithms work.
On development CyberChef: the cyber swiss army knife.
 Libsodium: cross platform cryptography library.
On darknet markets Gwern.net: data on darknet markets.
 NOS interview (Dutch): interview about Hansa Market investigation.
 Wired article: interview with colleagues on Hansa operation.
 Crime Dot Com: book on cybercrime by Geoff White.