I've seen a few posts floating around the Internet about creating realistic teen dialogue. A teenager today (or ever except perhaps in the 19th century) would not say:
"Perhaps I shall accompany you to the shopping center."
She would say:
"Let's go the mall."
If you really want to know what teens are saying to each other, visit Texts from Last Night. The conversation is vile, rude, riddled with sex and binge drinking, but it is a true portrayal of the lives of young people. It certainly gives me some good ideas. What about you? Do you have other sources for realistic teen speak?