Binary Exploitation
In this section I don't feel like there's much point going over the in's and out's of binary exploitation as it's been covered so many times, both by myself and numerous other and more talented people. I'm going to build a repository here of interesting links that might help your understanding.
I'll build a list of some interesting challenges and CTF's too that you can use to build up your skills. The number one thing to learn in Binary Exploitation is that practice is makes perfect.