Recent studies have shown that using social media such as blogs and wikis in classroom can enhance student learning. In this paper, we briefly introduce constructivist and social learning theories, blog technology and the use of blogs in education, and different design architecture of educational blogs. We then present a case study of using blogs in an undergrad level management information systems course in a university setting. The study aims to evaluate the effectiveness of blogmediated learning, knowledge discovery and creation within the scope of information systems education. The study also aims to investigate the design and usability issues of classroom blogs. Relevant data collected over the course of a semester include students' blog posts, classroom presentations and interactions, survey questionnaires (including five-Liker scale and open-ended questions), and instructional materials. Analysis of the data examines student goals, motivations, system usage, and perceived effectiveness and value of using blogs in classroom.