Whom Do You Love?

Okay, it's time to grab the comment box and tell me who your favorite contemporary YA and MG authors are.  (As in, they're not dead and they're publishing books right now.)

I'd like to invite more authors here for you to learn about and ask questions of, and I'd love to supply you with folks you really WANT to see here.  Obviously I can't promise you JK Rowling, but I can do my best to rope in a few authors who aren't richer than the Queen of England.

Post 'em!  I'll be reading with interest.