Launch Pad: Publishes the works of young authors and illustrators between the ages of 6 and 14. Welcomes submissions of unpublished stories, poems, and book reviews, as well as applications from potential illustrators. Note: This site claims to "retain the copyright" of published works, which could mean that the author no longer holds the copyright.
Stone Soup: Stone Soup is published six times a year. They accept writing and illustrations from kids 8–13. Read a sample copy online.
Kids on the Net: Kids can write stories and post them for everyone to read.
Wacky Web Tales: Create a funny tale by pre-selecting nouns and verbs that get plugged into a story, MadLibs style.
Skipping Stones: This magazine supports cultural diversity and publishes stories submitted in all languages. Read back issues online.
Giggle Poetry: Fill in the blank and create a poem. Enter a poetry contest or rate poems online.
National Novel Writing Month: Challenge yourself to write your own 50,000 word novel!