If You Like the "Gossip Girl" books. . .
The A-list (series) by Zoey Dean
The Au Pairs (series) by Melissa de la Cruz
The Black Book: Diary of a teenage stud by Jonah Black
Boys Over Flowers (graphic novel) by Yoko Kamio
The Clique (series) by Lisi Harrison
Confessions of a Teen Nanny by Victoria Ashton
Doing It by Melvin Burgess
Fresh off the Boat by Melissa de la Cruz
Girls Dinner Club by Jessie Elliot
Grecian Holiday by Kate Cann
Honey, Baby, Sweetheart by Deb Caletti
I Was a Non-Blonde Cheerleader by Kieran Scott
The Insiders (series) by J. Minter
LBD: It's a girl thing by Grace Dent
Lulu Dark Can See Through Walls: a mystery by Bennett Madison
The Manny by Sara L. Thomson
Mates, Dates... (series) by Cathy Hopkins
Nannies by Melody Mayer
Party Room trilogy by Morgan Burke
Peaches by Jodi Lynn Anderson
Prep by Curtis Sittenfeld
Queen of Everything by Deb Caletti
The Queen of Second Place by Laura Peyton Robert
Ripped at the Seams by Nancy Krulik
Simon Pulse romantic comedies
Sisterhood of the Traveling Pants (series) by Ann Brasheres
Summer Boys by Hailey Abbott
Twelve by Sophie Kinsella
Uglies (series) by Scott Westerfeld
The Year my Life went Down the Loo (series) by Katie Maxwell
Wessex Papers trilogy--Daniel Parker
Authors
Sarah Dessen
Meg Cabot
Carolyn Mackler
Ellen Wittlinger
Adult Books for Young Adults
Shopaholic by Sophie Kinsella
Sloppy Firsts, Second Helpings and Sixteen by Megan McCafferty
The Nanny Diaries by Emma McLaughlin
The Devil Wears Prada by Lauren Weisberger