A new study of college students suggests that iPods are more popular with that age group than beer, which normally occupies the top slot among the things that college students prefer most. In recent years, more and more technology-related items and activities have been the top ten list, including instant messaging and Facebook. Facebook, the popular Web site for young adults, actually tied with beer for second place. So perhaps these gadgets do have some redeeming social value--they appear to be cutting down on drinking.