Teen Ink is a great resource for teens and a great opportunity, too. Published for teens by teens, it is

a national teen magazine, book series, and website devoted entirely to teenage writing and art. Distributed through classrooms by English teachers, Creative Writing teachers, Journalism teachers and art teachers around the country, Teen Ink magazine offers some of the most thoughtful and creative work generated by teens and has the largest distribution of any publication of its kind. We have no staff writers or artists; we depend completely on submissions from teenagers nationwide for our content.

We offer teenagers the opportunity to publish their creative work and opinions on the issues that affect their lives – everything from love and family to teen smoking and community service. Hundreds of thousands of students have submitted their work to us and we have published more than 25,000 teens since 1989.
Bylines are first name and initial to preserve privacy. Current pieces include fiction and poetry and real-life experiences as a would-be model, an experience with bigotry at school, and celebrity interviews with Alicia Keys, Tony Hawk, George Lucas, and Laura Bush. The site offers an online writing class. There is information about colleges and college applications and there is a section for teen art, photography, and videos. One of the most fascinating aspects of the sight is the option to read the submissions in “raw” or edited form.
Teens who have something to say can submit their work according to Teen Ink’s very flexible guidelines.