The ORNL DAAC maintains data related to biogeochemical dynamics which are the result of the interactions between the biological, geological, and chemical components of the Earth's environment. Examples are provided as GIFs and JPEGs. Currently there are no fees associated with the SAA's on-line services. Satellite Altimetry Data Site - NOAA Satellite altimetry data and products. Data sets and imagery examples are available on-line.
Some data sets are free and others can be ordered for a small nominal fee.
Data sets can be ordered from the USGS and several examples are available on-line. Carterra's Image Catalog - Space Imaging Imagery available from Space Imaging. Another access point can be found here . The programme has also facilitated the flow of developing country data to the North American scientific community and vice versa. Visualization of Remote Sensing Data - NASA Images, movies, and 3D renderings of satellite imagery data.