This course is primarily based on two free software from ESRI: the ArcGIS Explorer (which is a desktop software), and the ArcGIS online (which is an online software). Both software are well integrated with each other. A few of the lessons in the course are based entirely on the ArcGIS online, other lessons are based on a combination of both the ArcGIS online and the ArcGIS Explorer. Two of the lessons also use the free version of the Google Earth software.
Although ideally this course would require an internet connection to perform at its best, the combination of these three software makes it possible for this course to also be delivered in a more limited manner in environments where internet connection is not available.