Read Elizabeth Wissner-Gross' posts on the Penguin Blog From the author of "What Colleges Don't Tell You," 250 secrets for raising "the" kid colleges will compete to accept The headlines prove it: Competition for admission to America's top colleges is more cutthroat than ever. Gone are the days when parents could afford to let high school guidance counselors handle the admissions process alone-gone, also, are the days when a student could wait until...