Nikon Learn & Explore is an iPhone app that teaches the fundamentals of photography and offers shooting techniques for common situations. The app also offers a library of professional images you can browse, each with an accompanying Nikon World article that details shot composition, equipment, lighting, and all that.
The concept of using Storytelling to improve the quality of our E-learning has fascinated me for a while. I recently found some resources that might help you incorporate a good story into your E-learning. I believe a good story can grab attention and create emotion as well as help internalize the training. Jason Ohler's presentation on New Media has some great ideas on storytelling. More resources are available on his site at www.jasonohler.com