I don't know how many of you Browncoats out there play World of Warcraft (an MMORPG that's famous for it's references and homages/ripoffs), but a friend of mine does (also a Browncoat) and posted this on his journal. I just copy and pasted, but I thought it was just too cool to leave alone. :D
"I havent even started playing with the Burning Crusade's high end content, but I've already run into a Firefly referance a quest giver named K.Lee says "Have you seen the swamp gas? Isn't it just shiny?" Im sure there are many more too."
So keep an eye out if you're on WoW. Maybe there's a pair of Captain's Tightpants or something.