FROM BARBARA JOHNSON
E-LEARNING AND THE SCIENCE OF INSTRUCTION (Clark and Mayer)
(From Amazon:) The essential e-learning design manual, updated with the latest research, design principles, and examples. "e-Learning and the Science of Instruction" is the ultimate handbook for evidence-based e-learning design.
There is a lot of great information in this book. It's one of the best books to help an organization define its eLearning strategies.