The next one is
PlanePlotter. Aviation enthusiasts who enjoy spotting aircraft, whether up close or virtually, turn to tools that facilitate their understanding of the skies around them. One of the ways that PlanePlotter displays information is via Google Earth; when location, direction
and altitude information are plotted, you can get a pilot's eye view of the terrain around them.
Last, but by no means least is
iLoveMountains. Under the umbrella of the non-profit group
Appalachian Voices. Appalachian voices are a Google Earth Outreach
grantee that engages in campaigning against mountaintop removal used in the production of coal. The iLoveMountains.org project lets people see their connection on Google Maps or Google Earth to mountaintop removal based on their U.S zip code. From there, people can learn about what involvement their local supplier may have in buying coal supplied using mountaintop removal techniques - and what action they can take. These kinds of "story-telling" KMLs & mashups stimulate the senses by giving a real feeling of connection to the place, illustrating the issues.
Hopefully you'll have some fun with these various apps, and perhaps you'll get inspired to create your own. If so head over to the
Google Code - Geo page, where you can learn how to create all kinds of wonderful tools. These could range from a simple maps mashup through highly complex dynamic KML files.