The first three programs in a new podcast series on photogarphy have been posted at the Nikon Web site. Podcasts can be a relaxing way to learn about a subject without having to have your eyeballs chained to a book or computer screen. In these three installments podcast host Mark Ellwood and guests talk about digital SLR cameras and the in and outs of special event and group photography. Ellwood also interviews john mayer about his music and photography.