I've been modding on and off since 2006, but was never really serious until about 2009 when I decided it was going to be my hobby because there is little else in the world like it. It's like lazy game making just it's not very lazy. I started with want post on Moddb asking for someone to make my idea of a Half-Life mod for me and eventually meandered my way into actually making my own stuff. Funny how that works. Anyway, above are links to the various mods I've been a part of in the past years.
Enjoy.