DD9 has written a few short stories, and I've just let her type or write when she's interested. At times, she started a bit too ambitious and did not finish them so we tried to scale back so she could have a finished product. Last year, she began asking questions about how to structure a story (plot, characters etc.) and we got some books from the library. I can't remember any specific ones, but we took advice a little from each of them. I would check your local library for any resources.
Also, DD had a wonderful 2nd grade teacher, who got her a "special" poetry journal. When she was done with an assignment early, she got to write poetry. At the end of the year, her teacher presented the book to me. It was so precious.
If I come across any of the books we used, I will let you know.
