The purpose of this study is to highlight the possibilities and challenges that underlie efforts to integrate blogs into teacher-education programs in Taiwan higher education. The participants were 12 pre-service teachers undertaking Master's level study in Teaching English to Speakers of Other Languages. The outcomes of the blogging project were highlighted in terms of pre-teachers' professional development on the blogs, their difficulties encountered, problem-solving strategies employed, and the students' perception of blogging. The results suggested that blogging could encourage pre-service teachers to actively and reflectively engage in knowledge sharing, knowledge transformation, and knowledge generation. Blogging also encouraged the development of numerous strategies to cope with difficulties encountered in the blogging process. Overall, pre-service teachers held positive attitudes toward blogging as a support for their professional development and were conscious of audience considerations, and so tended to select and respond to blog content deemed interesting and useful to their audience. (Contains 2 tables.)