e-Learning Design & Development: Search for New Text Book

I teach a course at University of Washington Extension on creating materials for e-Learning experiences and for the last three years have used an excellent text from William Horton titled, "E-Learning by Design" (Pfeiffer, 2006). What I like most about the book is the plain-spoken language he uses to describe the topics and the simple organization of the material. The book is full of examples and references to the topic at hand and has some very nice graphics.

The book is showing its age in that it doesn't cover topics such as mobile learning and social applications. I think what it does cover is highly relevant to today's training issues, so I will continue to use it as a reference on design.

But what should I use next year?

I am considering Ruth Clark's "Developing Technical Training - 3rd Edition" Pfeiffer, 2007 for many of the same reasons i Like Horton's text: well organized and presented, good, simple graphic examples, and plain language. I think these traits work well with new designers as well as those re-working their skill set.

The two books differ in that Clark starts each discussion with the underlying instructional design principle and elaborates on it with e-Learning applications. She devotes a final chapter to how all the techniques differ when used online vs. face to face settings.

My other option would be to collect a series of articles in a reader format. Do you have any suggestions for me?

Thanks for reading.