Remember that a path is a group of related pages of course content. Your students will be able to move forward and backward through the path, as well as to other resources and WebCT Tools. Paths are great ways to show relationships between ideas and concepts. Alternately, a single page is a bit isolated from the rest of the course information. It's good to use a single page for a piece of information that students will need to access repeatedly over the semester, such as the course syllabus, grading criteria for essays, or a list of laboratory procedures and safety rules for science laboratory sessions.
Paths also keep detailed tracking statistics about their pages, whereas single pages show only hits.
Thanks to Brian Morgan of Marshall University for the last reason for using paths. Even if you've set these preferences before, it's a good idea to go back and make sure they haven't been changed inadvertently.