Danielle Fortosky sends along this information. Might be useful if you’re looking to take an online course from another university on your program.
University of Houston, Clear Lake offers an MS in Instructional Technology with plenty of ID courses ( http://inst.cl.uh.edu/Programs/CourseList.htm(. Many of these courses are online and more planned in the future. I am not sure what the process is to take the courses individually, but it might be worth checking out.