Google Earth User Guide from Carleton CollegeThis is an introductory user guide for students, educators, and anyone else who would like to learn to use Google Earth for education or fun. It includes instructions and diagrams on how to perform common tasks associated with viewing or creating map data. It also provides links to other sites that offer additional information.
OpenStreetMap Resources
Using OpenStreetMapGuidance, references and tutorials within the OpenStreetMap Wiki.
Learn-OpenStreetMapTutorial for OpenStreetMap, crowd-sourced map of the world.
Missing Maps ProjectOpenstreetmap directory of projects for disaster mitigation or humanitarian outreach.