general- Some general stuff. Where to learn things, how to get into security, etc.
Workshops in chronological order:
intro+intro_to_reversing- Intro to 0xBU, and introduction to reverse engineering
cli+intro_to_reversing2- Intro the command line, and a continuation of reversing
wargaming1- Intro to some wargames
x86_exploiting1- Intro to x86 exploitation 1
network-security- Network and Internet security
web-security1- Web Security 1
web-security2- Web Security 2
cmurpibomb- CMU and RPI Reverse Engineering bombs
The other repos in this organization are useful as well.
0xBU/ctfs- has releases of old CTFs to play and learn from