This paper reports on a study undertaken to examine student usage of course webs (i.e., course materials and resources on the World Wide Web) in classroom situations in which computers are readily available and students are comfortable using hypertext systems. The author prepared course webs for two computer science courses at Grinnell College (Iowa). Each course web contained: links to the remainder of the Web and appropriate external resources; standard handouts, such as syllabi, rules/regulations, and assignments; outlines for each class period; a short news document providing updates to the Web; online quizzes; and appropriate reference materials, including readings and external links. The courses were taught in a computer-equipped classroom, and students were allowed to use the computers as they deemed fit during class periods. Data were gathered using two student surveys on Web usage and Web server log analysis. A significant but not uniform use of Web-based course supplements during class periods was evident. In addition, students reported benefits from their self-directed in-class use of the online materials. Three tables present data on students' self-reported use of class outlines, overall Web usage in the first 7 weeks, and page access by category in the first seven weeks of each course. Contains 13 references. (DLS)