Amazon.com : Opteka SB-1 Mini Universal Studio Soft Box Flash Diffuser for The Nikon SB-900 SB-800 SB-700 SB-600 SB-400 SB-700 SB-900 SB-910 Flash Units : Electronics
Amazon.com : Nikon SB-600 Speedlight Flash for Nikon Digital SLR Cameras : On Camera Shoe Mount Flashes : Electronics
The Nikon Creative Lighting System: Using the SB-600, SB-700, SB-800, SB-900, SB-910, and R1C1 Flashes: Hagen, Mike: 9781933952994: Amazon.com: Books
Amazon.com : The Flash X-Tender (Better Beamer) FX-4 Flash Output Booster for the Nikon SB-600 and SB-800 Flashes with Lenses 300mm : Camera Flashes : Electronics