Clark Biology to serve as a repository for course website information, etc., for courses run by Dan Clark.
The first course added to that site is the archival version of the course site for the UCSD course BIPN 150, Diseases of the Nervous System. I served as TA for this course, and developed the class website using WordPress.
I switched hosting providers in order to have greater bandwidth and storage space, and decided that registering a new domain name for every course I taught would not be a wise use of (limited!) discretionary income. All of my future courses will therefore be at clarkbiology.com, in a subdirectory.