I love the blog idea. A lot of teens (I have several teenage employees) are also very active on facebook.com. Some of them have already given up their myspace accounts. (No reason why you can't do both, too)

And have you thought about maybe writing a book? (Mine was published by outskirtspress.com) You could use the blog to gather ideas and hone your writing skills.

I agree that a print magazine isn't going to reach your target audience.

-Adeena
http://cutelittlestore.net