Rule #1 of College: Avoid for-profit colleges

Over the past 10 years, for-profit colleges -- which are different from private colleges, most of which are operated as non-profits -- have tripled their enrollment to 1.4 million, with annual revenue of $26 billion.

Leading for-profit colleges include the University of Phoenix, Devry, The Art Institutes, and Kaplan University, where students can study many of the same things they do at more traditional institutions.

But is that growth good for students?