I am currently enrolled in a n Accelerated Degree Program however it is through a "regular" (so to speak) university that has a good reputation regarding their business school. It is an MBA program that last 22 months and it is NOT EASY!! In my program, the classes only last 5-6 weeks and you only meet once a week for classes. So far, it is working great for me as far fitting into my schedule but I do have to put in at least 2 hours a night for studying, homework, projects.
Most local universities offer programs like these, so I would check with them too (aside from just Univ. of Phoenix or Nova). If you want something strickly via the 'net many universities are offering programs like this as well. (Imagine getting a degree from Columbia without ever having set foot on campus).
Oh, just as an FYI the majority of these accelerated programs are not cheap! When i was looking for a program, the average cost was between $15,000-$18,000.
Good Luck!