Figment is a community where you can share your writing, connect with other readers, and discover new stories and authors. Whatever you're into, from sonnets to mysteries, from sci-fi stories to cell phone novels, you can find it all here.
Internet Public Library Teenspace Poetry Wiki
Publish your poetry online.
Submit your writings for online publication to this site run by the New York Public Library Teen Link.
Advice on every aspect of writing and being published.
Teen Voices Magazine Online
Want to have your writing published? Try this site - geared toward girls.
Teen Ink is a monthly print magazine, website, and a book series all written by teens for teens.
Features teen writers' work online, currently including poetry, essays, short stories, and book reviews but open to adding new genres.