The Charlie Foundation's Facebook page has a Teen Support Group which is moderated by Dawn, mom of Charlotte, and Emily, a college student (on the diet).
Fay and Leslie are aware of these Facebook groups:
Ketogenic Parents Rocks
Diets for Epilepsy
Dravet Dietary Approaches
There is also a ketogenic diet support group on Yahoo
Fay offers this resource: My son, Scott, was diagnosed with Lennox Gastaut Syndrome at age 3 so I have always been active with the yahoo LGS email list and with the Facebook LGS Foundation group.