The Create a Comic Project welcomes its newest member: Kastle Comics by Sarah White. It's a relatively new webcomic, but the art and writing are already well developed (if you look at Sarah's DevArt account, you'll see she's been drawing for quite some time). I especially like its "slice of life" tales of a comic book store.
I'm pretty sure this is the first webcomic to join the CCP that is actually younger than the project itself. Man, I feel old.