Before you enroll, you should know if you need special software. You should find out if the program offers audio and video. Otherwise, you'll do most of your work with text. They don't offer any more courses online than they would offer in the classroom for that semester. They're more convenient for place, but not necessarily for time.
Many schools offer self-tests on their Web sites.
The tests are designed to help you understand whether their programs will be a good fit for you. There is yet another small cadre of schools that is truly changing the way colleges and universities do business. They're genuine Innovators. They keep a degree plan and a transcript of your progress on file. When you've met the requirements of your degree plan, they send you a degree.