Draw Something 2 is a social drawing app by Zynga, it's used by non-artists as well as amateur and professional artists. There are ink limits and tool limits and it's basically meant as a glorified digital pictionary game. However, artists have long made it much more than that and the art that comes out of this app is incredible! Check out the Whovian DS2 Fan Art I posted yesterday and then check out this next list of Star Trek Fan Art.
ST:TAS by Emma Apple
Star Trek happens to be my favorite of favorites, so I'll start with a few from my set of 'Star Trek: The Animated Series' drawings.