Here's a link to a wonderful literary magazine out of San Francisco. MCSWEENEY'S not only publishes new writers, they run writing workshops where kids of all ages can create original stories and learn to express themselves in writing.
They are a national treasure. They are also one of the best literary magazines around.
MCSWEENEY'S magazine caught my eye in a bookstore some years ago, and they are now online--and nominated for a Webby Award, at that.
IF ONLY THEY KEPT DIARIES: BARBIE, available on the McSweeney's homepage (scroll down to read it after using the above link), is hilarious.
The site is bare-bones but the writing is wonderful.