For anyone who's interested, I recently started a new website called
SAR Math to discuss applied mathematics as it relates to Search and Rescue. Right now it's mostly explanations of subjects, but there are a few handy dandy calculators for SAR applications. More tools are on the way.
If you are interested, have a look. If you have an idea for a topic or would like to contribute, let me know. Right now, some parts that may be interesting to Mission Manager users are:
There's lots more to come, and feel free to make requests. http://sarmath.com/