This important new book provides a critical collection of recent research on on-line communication for second language learning, including uses of electronic mail, real-time writing, and the World Wide Web. Chapters analyze the theories underlying computer assisted learning, explore the contexts that affect network-based teaching, and examine the linguistic nature of computer-mediated interaction in both textual and multimedia environments. Each chapter has been specially written for this collection by an individual who has done extensive research on the topic explored. The result is a highly readable but in-depth analysis of the way that on-line communication is reshaping language teaching.