Rich kids and their advantages: "Ms. Viswanathan said that while she was in high school, her parents hired Katherine Cohen, founder of IvyWise, a private counseling service, to help with the college application process. After reading some of Ms. Viswanathan's writing, Ms. Cohen put her in touch with the William Morris Agency, and Ms. Viswanathan eventually signed with Jennifer Rudolph Walsh, an agent there."