I don't know, I just signed up because it seemed easier than constantly having to do all the code work myself to show my friends funny pictures I took. Usually it's either funny pictures or close-ups of things in here, and I like close-ups mostly because I can then use them as textures in my graphic design work. I don't pretend to be even close to professional, or even prosumer (I heard Russell James use that term once and it sounded appropriate). I just take random pictures when I get bored.