The Field Day Logging progrom (FDLog) cohesively ties together the stations in the Field Day activity, maintaining copies of all data on all computers via the (802.11 wireless) network. If a computer crashes or becomes unavailable it does not matter - the data is already copied to all the other computers. It allows the stations to choose bands knowing the status of the other stations in the group at a glance. It helps manage the number of transmitters active and allows everyone on the site to see "what's going on" at all times. The input system is designed for minimum keystrokes, and it is optimized for Field Day operations. It is capable of preparing nearly the whole FD Entry form for ARRL submission, making it much easier to actually send in the results. It keeps time synchronization between the stations. It is written in Python, available as sourcecode, and is available at no charge. It runs on many platforms.