AGI is a nonprofit federation of 50 geoscientific and professional associations that represents more than 250,000 geologists, geophysicists, and other earth scientists.

"The Union is dedicated to the furtherance of the geophysical sciences through the individual efforts of its members and in cooperation with other national and international scientific organizations."

Earth Science World Image Bank is a service provided by the American Geological Institute (AGI) with access to over 6,000 images.

Topics covered include topography, bathymetry, paleoclimatology, geomagnetism, geothermalism, and many more.

The National Science Foundation (NSF) is an independent federal agency created by Congress in 1950 "to promote the progress of science..."

The North Carolina Geological Survey (NCGS) examines, describes and maps the geology and mineral resources of North Carolina and publishes these findings in NCGS reports and maps.

The mission of the University of California Museum of Paleontology is to investigate and promote the understanding of the history of life and the diversity of the Earth's biota through research and education.

"Provides access to elements that are essential to the professional growth of earth scientists at all levels of expertise and from all sectors: academic, government, business, and industry."

"Fact-finding agency that collects, monitors, analyzes, and provides scientific understanding about natural resource issues, conditions, and problems."

The U.S. Geological Survey Denver Library maintains a collection of over 400,000 photographs taken during geologic studies of the United States and its territories from 1868 to the present.