Here are some links to things I think are valuable
Bios master password generator –> https://bios-pw.org/
Code Academy ( Learn how to code )
Khan Academy ( Learn just about anything )
Hacking
https://www.hacksplaining.com
Software
Hardware
Hacking the Xbox ( Free Ebook by Andrew Huang )
Electronics
http://www.eevblog.com/
http://www.eevblog.com/forum/
Tech news
http://tweakers.net/
http://arstechnica.com/