What’s the problem most American colleges are facing?

(17)American colleges face what some people are calling a " perfect storm" of problems: college costs are rising. There are not enough jobs for all those completing study programs.(20)Yet employers say they can not find enough workers with technical skills. One solution may be found in the growing number and quality of online classes: such classes might revolutionize colleges the way the Internet has already changed music, publishing, sales, and other businesses.
    Many top universities now offer online classes: they teach everything from computer programming to the science of cooking. Many classes are at little or no cost.(18)They are restructured more often than traditional college programs.
    (19)At most colleges, a professor or teaching assistant gives a lecture to students, who then do research, study, and homework alone. Students say online classes change everything around. They watch the lectures at home as homework, recorded lectures, and when they get to class, they are having more active discussions, or interactions with the teachers or working on projects.
    Experts say the new technology will have a major effect on colleges. Some predict future classes may be a mix of online lectures and professors helping students work through difficult problems in person.