What are the best web sites for tweens and teens looking for fashion & music advice?”
Seventeen is a great webiste for what you are looking for. This place has been around for, basically, ever. I read their magazine when I was both a tween and a teen. It’s all about current trends, music, movies, etc. It’s basically the gold standard as far as teen sites goes. Even though the name of it is “Seventeen”, over the years I’ve realized that most of the girls that reads this site and/or magazine are 11-16 or so. I know the magazine has a great advertising section, and I’m assuming that they advertise different businesses regularly on their site. I hope this is a helpful answer in your search!