With the widespread availability of Internet and computer technology, on-line web-based learning has become prevalent in the field of teaching Chinese as a second/foreign language (CSL/CFL). This study examined the concepts of usability and types of design elements that help construct an effective web-based learning environment, as well as their relationship with user perspectives from both CSL/CFL learners and teachers. The participants' navigation experiences were investigated as they performed and reflected upon the guided usability tasks on assigned websites via a semi-structured think-aloud interview. Captivate and Audacity software were used purposively to capture users' navigation paths and record reflections during each test section. The findings provide a profile of design issues and examples in terms of interface, information and interaction along with pedagogical suggestions to consider in future CSL/CFL website design and development. (Contains 3 tables and 17 figures.)