I have participated in my first ctf csaw 2014. Even though I could not solve a good amount of questions.
Here is the link of the website https://ctf.isis.poly.edu/. There is a good archive of the problems in the shell-storm website here is the link http://shell-storm.org/repo/CTF/CSAW-2014/.
You can expect me to writing the writeups for the questions specifically reverse engineering