Making sure that information is easy to understand, can be easily found, and everything kept to a uniform design is so crucial. The less time students have to spend "looking for" the information, the longer they can spend on learning the actual information. I have found that if the student cannot find what they are looking for, or they don't understand, they spend too much valuable time looking, asking questions, and getting frustrated. If they have a deadline, and so many students wait until the deadline is close, they will get frustrated and maybe not do as well on the assignment as they could have if only they could have found/understood the information sooner. Frustration, I think, is avoidable if the navigation is simple and the information can be easily found.