The importance of knowledge management has been recognized both in academia and in practice. Meanwhile, the web technology is being used as a new and common medium to support the collective nature of knowledge management. In this chapter, 4 types of web-based knowledge management models are identified and discussed. It is believed that more models exist and could be identified. Nonetheless, these 4 models are believed to be able to reflect the current level of web-based knowledge management, which can be basically described as content-based information retrieval and topic-oriented information association and organization. This chapter concludes that the current web-based knowledge management is at a lower level, and, the potential of the web technology based knowledge management has just started to be realized. The study of the models identified in this paper would provide insights on leveled knowledge management, what should be contained in a higher level of knowledge management system, and how knowledge management support systems can be technically implemented.