Sources for information are varied and can often be unexpected.
Just about everyone who has had some sort of interaction with prospective, current, or past students will have some sort of insight to give when researching a new course.
It's important to gather as much information as possible form as many sources as possible to get a full understanding of all you need to know. One of the most important resources is people who have actually lived through the course and found work after. Their experience is the most relevant.