A piece by National Geographic photographer Annie Griffiths Belt on lessons she has learned about travelling light, especially in third world countries.
A brief piece by National Geographic shooter Jim Richardson on using multiple SB-800 flashes in a wireless TTL setup. (It's an overview of what is possible, rather than a detailed how-to.)
There is also a short article describing uses for the WT-1A wireless transmitter with the D2H, as well as profiles of photographers Dave Black, Peter Turnley, and Ben Lowy.