I have to say, when I first started mapping, i came to this site for tutorials. After about a year, I began to master Hammer and began to peer onto the forums. Well, two years have passed, and I've finally decided to join these forums...
I'm currently working with CS:S and L4D2 with the occasional HL2 Ep:2...
These are my main collection of maps that I have made:
http://www.garrysmod.org/user/?u=62395&rnum=385925