* 09-02-11: [http://www.forestcouncil.org/googleearth/browse/explore_oregon_pg1.html 用 Google Earth 看哪個地方砍比較多樹]
   * [http://david.tryse.net/googleearth/ 其他 KML 來源]
 * 08-09-24: [http://www.ibm.com/developerworks/opensource/library/os-google-earth-altitude/index.html Enhance image overlay maps in Google Earth with altitude attributes] (Shared By Thomas)