The Peer Coaching Program has been in place in Taiwan for more than two years. We have not only trained 165 local facilitators, but also held 92 training courses for the coaches. In addition, we have established the website, PBL.NET, which provides personal experience sharing, online materials search, and online courses. Currently, more than 7,000 elementary, junior, and senior high school teachers and students participate in the program. PBL.NET includes more than 2,100 WebQuest lessons and provides more than 1,180 online courses. The evaluation results indicate that the Peer Coaching Program is very successful in Taiwan. Our ultimate goals are to implement a professional development model so as to provide an excellent digital learning environment, to advance teachers' skills, to enhance standards-based instruction through engaged learning and technology, and finally, to increase students' learning achievements.