Other geospatial tools
To this point, we've looked at the core of geospatial (GPS units, dynamic globes such as Google Earth, and GIS) plus something else that's spatial...and sometimes GEOspatial (augmented reality).
Obviously, we have more geospatial tools, or geospatial-enabled technologies, that we could discuss. Here are just a few that I think are worthwhile.
Flickr.com world map: https://www.flickr.com/map
VisEyes (aka 'VisualEyes') project from the SHANTI group at the University of Virginia: http://www.viseyes.org/viseyes.htm. I'm going to highlight some of the projects; you can also watch a short video giving an overview of the VisualEyes project and a demo of some of the projects -- including Texas Slavery and Jefferson's Travels -- here:http://viseyes.org/demo.htm