Cybersecurity resources:
Learning: https://pastebin.com/VNTsyNKp
CTF/Wargames: https://pastebin.com/u2QTfmZn
News: https://pastebin.com/tDn5qzZE
Other useful stuff: https://pastebin.com/u21XrVaz
Essentials Pastebin: https://pastebin.com/UY7RxEqp
Books: http://www.allitebooks.com/
Network visualisation: https://dowse.eu/
Unofficial grsec: https://github.com/minipli/linux-unofficial_grsec/tree/linux-4.9.x-unofficial_grsec
Security tips in order of difficulty: https://pastebin.com/5XfDX4wL
Qualys Security Advisory - The Stack Clash: https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt
http://boards.4chan.org/g/thread/61062751#p61064761's advice: https://pastebin.com/xRqEW8W7
Firefox extensions: https://pastebin.com/dinBuXxJ
TEMPEST attacks against AES: https://www.fox-it.com/nl/wp-content/uploads/sites/12/Tempest_attacks_against_AES.pdf
Shared thoughts after 6+ years in Pentesting (http://boards.4chan.org/g/thread/61194248#p61211017): https://0x00sec.org/t/shared-thoughts-after-6-years-in-pentesting/2492
Cybrary: https://www.cybrary.it/
Awesome Infosec: https://github.com/onlurking/awesome-infosec
InfoSec and exploitation tool diagram: https://netsec.ws/infosec.svg
So you want to be a Hacker: https://netsec.ws/?p=468
The OWASP Mobile Security Testing Guide: https://b-mueller.gitbooks.io/the-owasp-mobile-security-testing-guide/content/

Cryptocurrency:
Verge:
Website: https://vergecurrency.com/
Interview: https://youtu.be/EFXkJjgPlII
Monero:
Website: https://getmonero.org/

Anonymity networks:
I2P: https://geti2p.net/en/

Tox:
Tuntox - Tox protocol TCP tunnel: https://github.com/gjedeer/tuntox
ToxBot: https://github.com/JFreegman/ToxBot
ToxVPN: https://github.com/cleverca22/toxvpn

Cybersecurity videos:
DEFCON 14: The Making of atlas: Kiddie to Hacker in 5 Sleepless Nights: https://youtu.be/gYOy7CGpPIU
DEFCON 16: Nmap: Scanning the Internet: https://youtu.be/Hk-21p2m8YY

Cybersecurity news:

https://www.schneier.com/
https://grsecurity.net/blog.php
https://isc.sans.edu/
https://blog.torproject.org/category/tags/security-fixes
http://resources.infosecinstitute.com/
http://www.windowsecurity.com/articles-tutorials/
https://www.sans.org/reading-room/
https://threatpost.com/
https://packetstormsecurity.com/

Introduction to cybersecurity:

https://ssd.eff.org/
    your first steps.
https://trailofbits.github.io/ctf/index.html
    introduction to CTFs. even if you never do one, this is a good read.
https://wiki.installgentoo.com/index.php/Anonymizing_yourself
   quick and dirty guide to anonymizing yourself.
https://pastebin.com/raw/5a0y9hsp
    this is the old, fabled, Paranoid #! security guide. not all of it is up to date, but it is very thorough.
https://samsymons.com/blog/reverse-engineering-with-radare2-part-1/

Learning resources:

https://github.com/vhf/free-programming-books/blob/master/free-programming-books.md
    absolutely massive collection of free resources for learning programming from beginner to expert level.
https://www.offensive-security.com/metasploit-unleashed/
http://www.allitebooks.com/
http://opensecuritytraining.info/Training.html
http://www.und.edu/org/crypto/crypto/lanaki.crypt.class/

CTF and wargames:

https://www.pentesterlab.com/
https://www.mavensecurity.com/resources/web-security-dojo/
https://exploit-exercises.com/
http://www.itsecgames.com/
http://forensicscontest.com/puzzles
https://pwnable.tw/
https://io.netgarage.org/
https://ctftime.org/
https://www.vulnhub.com/
https://w3challs.com/challenges/hacking
https://xss-game.appspot.com/
http://smashthestack.org/
http://www.hackertest.net/
https://www.hackthissite.org/
https://overthewire.org/wargames/
https://0x0539.net/
http://3564020356.org/
http://pwnable.kr/

Vulnerability management:

https://www.cvedetails.com/
https://www.exploit-db.com/
https://www.rapid7.com/db/
http://mvfjfugdwgc5uwho.onion/
https://cve.mitre.org/cve/cve.html
    this site lets you download their CVE list in formats easier to work with.

Cryptography:

https://pqcrypto.org/
http://www.tandfonline.com/toc/ucry20/current

Penetration testing:

http://ytxmrc3pcbv5464e.onion/files/
    collection of various ebooks mostly focused on pentesting.

Reverse engineering:

https://beginners.re/
https://github.com/rpisec/mbe
http://blog.ijun.org/2009/12/understanding-elf-using-readelf-and.html
http://ref.x86asm.net/index.html
    easily-searchable opcode and instruction reference.