This paper discusses two case studies conducted at Northern Arizona University. The studies are from classes that are using the World Wide Web to enhance teaching and learning. One class is the Art of Cinema, a film studies class that has been taught via Instructional Television (ITV) for five years. Various techniques have been used over the years to increase class interaction. This paper addresses a step-by-step procedure for effectively using the Web to enhance the learning environment in large enrollment courses like this one by increasing interaction between student and teacher and among students. The second class, Creative Advertising Strategies, was developed as a fully Web-based course in the summer and fall of 1997 and taught on the Web, concurrently with a traditional classroom section, in spring of 1998. A pilot study was conducted to determine student satisfaction of a Web-based versus a traditional classroom environment and comparisons are made to each other. Results of the study, along with implications for future Web-based courses, are provided in this paper. (Author)