Why did no one tell me how awesome this webcomic is? (Probably because people did and I wasn't listening. *shrug*)
I was going through that "ten superhero comics you should be reading" article today (Steve Rogers' American Captain is neat too, by the way) and I stumbled across Strong Female Protagonist. It's awesome! It reminds me of Powers in a lot of very good ways.
The art is a little dodgy at the start (although it's improved quite a bit), and the first issue/chapter is mostly just setting the stage for the actually really cool content in the other three (so far), but once it gets going, it's really really cool.
Not sure what else to say, other than that I'm a fan of this thing now.