More and more faculty members are using web-based instruction as part of their course or as complete courses, which has resulted in an entire web-based instruction programs and virtual universities. As such, web-based instruction is one of the major areas that are becoming key to the development of the Web. To the contrary, despite having accessible hardware, training, and discipline-specific media, some faculty members are hesitant to adopt web-based instruction. This study investigated factors influencing the decision process to adopt or reject web-based instruction by faculty members and results show that attributes of innovations such as trialability, observability, compatibility, relative advantages, and complexity, play a major role in the process.