Maggie's Farm

Often one needs or desires knowledge and skills which do not lead to a degree but which extend your abilities and skills and, thus, your value and employability.  The best source I am aware of is the NYU School of Professional Studies. Many of their courses are online. 

Here are all the areas in which they offer professional development courses. Wonderful. Their Real Estate program is called, amusingly, the Schack Institute of Real Estate. They offer a large array of online courses covering all aspects of the real estate biz.

It's practical education. I am all for it. Many things can be learned on the job, but it never hurts to know the stuff in advance and, after all, you have to be able to say something worthwhile in a job interview. Many or most of their courses are available online and are not expensive.