The American Chestnut Foundation  is working to create blight-resistant varieties and to restore the American chestnut tree to our eastern woodlands to benefit our environment, our wildlife, and our society.

FrogWatch USA a citizen scientist program for individuals, groups, and families to learn  and report species and relative numbers based on calls of local frogs and toads.

National Weather Service comprehensive current and past climatological data at annual, monthly, and daily frequencies for numerous stations across the country.

Saving the American Elm with information on research to create Dutch Elm Disease (DED) resistant varieties of American Elm.

Weather Underground community of weather enthusiasts that share weather data and content across the internet. With over 180,000 members sending real-time data from their own personal weather stations, this is an extensive data set collected by volunteers.