Join the Google Earth Community. There are a large number of people all over the Earth interested in building upon the foundation of Google Earth to create imaginative and useful information. The community runs a bulletin board on the keyhole.com Web site, where it shares information and map information such as overlays and 3-D models.
Point your Web browser to http://bbs.keyhole.com.
After you sign up to participate (see Figure 13.7), you can share your own creations or try out some of the interesting things other people have created.
Figure 13.7: Begin by configuring your community profile.
The bbs.keyhole.com site also hosts the KML (Keyhole Markup Language) reference for creating XML-based mapping items such as points, lines, and polygons.