A much-needed overview of the diverse approaches to research and practice in computer-assisted language learning.

1. Introduction Glenn Stockwell; 2. Diversity in learner usage patterns Robert Fischer; 3. Diversity in learning training Philip Hubbard and Kenneth Romeo; 4. Diversity in learner support Hayo Reinders and Pornapit Darasawang; 5. Diversity in environments Glenn Stockwell and Nobue Tanaka-Ellis; 6. Diversity in content E. Marcia Johnson and John Brine; 7. Diversity in modalities Marie-Noëlle Lamy; 8. Diversity in technologies Gordon Bateson and Paul Daniels; 9. Diversity in research and practice Glenn Stockwell; 10. Conclusion Glenn Stockwell.