Maps derived from airborne and satellite imaging systems provide reliable and cost effective information for monitoring, modelling and managing marine, terrestrial and atmospheric environments. As the number of commercial and free airborne and satellite image types increases, along with easier access to public domain and open-source image processing approaches, the choice of which data and processing approach(es) to use is confusing. To enable technicians, scientists and managers to make the most appropriate selection of data and a processing approach for a specific environment and application, an interactive, web-based toolkit was created by the Biophysical Remote Sensing Group at the University of Queensland. The toolkit teaches managers, scientists and technicians working in marine, terrestrial and atmospheric environments, how images collected from satellites and aircraft (remote sensing) can be used to map and monitor environmental features or processes, and their change over time.