In this article, I describe findings from a study of the perceptions of course developers and electronic teachers on the principles of effective asynchronous web-based content design for secondary school students. Through interviews, participants' perceptions of various web-based components and instructional strategies, and the effectiveness of both based upon the experiences of the participants were investigated in a virtual high school context for the purpose of generating a list of guidelines that future course developers might utilize. (Contains 1 figure.)