Radon Related Websites:
CanSAR Org (Cancer Survivors Against Radon)
State Of Vermont (Department of Health)
Vermont Radon Levels This site has some really good information. For example, they have data showing testing averages for counties.
Radonaway A company I use for most of my supplies.
Vermont Agency Of Natural Resources Vulnerable Vermonters, Radon page
Columbia University Radon Project (cost estimator)