David Lesjak is one of the few worldwide experts on the history of Disney during WWII (the only other historian I can think of that tackled the subject in-depth is Richard Shale - that is until Paul F. Anderson releases his special issue of POV on the subject).
A few years ago he published a small book called Toons at War that he is in the process of updating.
So you can imagine how delighted I was to get an email from him this weekend informing me that he had just launched his blog, Toons at War. My, as if I didn't have enough great blogs to check daily already. Oh well, there is nothing that I love more that great Disney research done by serious Disney historians.