If or when I do, it always links back here.
By all means, repost to Tumblr or whatever site, as long as you keep my signature/name thing on the side or wherever I choose to put it, or link back to me somehow. I don't have a problem with publicity~
But if you see someone trying to sell my stuff, please tell me. Currently there's someone on Redbubble selling shirts with the LoL chibis I made, and I only found out because someone was cool enough to ask me if I was the actual seller... on one hand it's sort of flattering, on the other I'm actually amazed at how pissed off I am.