The free-music service Ruckus is launching at more colleges. Multiple University of North Carolina campuses just decided to implement the service, following on the heels of Arkansas State and Indiana universities. And the University of Florida just created a committee to review its options. What Florida will decide is hardly clear. The digital music service has been hailed by some. But not everyone agrees. "Ruckus Suckus," wrote an Indiana University student, pointing out that the songs are not convertible to iPod format and that students' right to listen to them disappears upon graduation.