To prepare American preservice teachers for online teaching and for reaching diverse learners, an e-mail correspondence partnership was created between American and Taiwanese university students. Students explored the theory and practice of online instruction, corresponded as "keypals" to teach the English language and American culture, and reflected upon their experiences. Through these activities, American preservice teachers acquired skill in online teaching. The article begins with an overview of the theoretical background of this topic and a review of the objectives of the program. The objectives for the preservice teachers were the following: to gain experience and practice online teaching; to establish a friendship with a student from another culture; to exchange cultural information; to improve online communication skills; and to recognize the benefits and limitations of online learning and teaching. The overall experience was a positive one, and the practice of pairing American and Taiwanese students was continued. It is argued that because it is rapidly becoming the norm for all students and teachers at the university level to be well-connected to the Internet and World Wide Web, having online teaching and learning skills is vital to both learners and teachers and will become increasingly more so. (KFT)