This site serves many purposes. Primarily, I use it to provide various support services to my various students at my primary university as well as others I serve part time. The knowledge, ideas, and technology these students create is incredible and needs to be published in some form while they are still in school. So this site serves as a platform for many of those creations as well as other minor services like lab and TA scheduling.
I also use it to publish free help and tutorials based on the classes and topics I teach. These topics are all based in information systems domain, but primarily include the intersection of app development and machine learning.