Since the 1990s, when Reviving Ophelia became a best seller and "Girl Power" a familiar anthem, girls have assumed new visibility in the culture. Yet in asserting their new power, young women have redefined femininity in ways that have often mystified their mothers. They have also largely disavowed feminism, even though their new influence is a likely legacy of feminism's Second Wave. At the same time, popular culture has persisted in idealizing,...