Around 20 percent or 3.5 million college students are enrolled in online courses in 2008. That is 10 percent increase in 2007. Moreover, they are enrolled in either one or two courses at a time. You may wonder why the numbers keep climbing up. You may also want to know why it matters to you. The answer is simple: you have a huge market ahead of you. If you can tap on such market, then you have a gold mine right in front of you. You have a business that you can sustain for so many years.