In addition, Web site owners can now embed Google Earth 3-D views into Web pages.
Rademacher says Google's goal is to open up the core of Google Earth to developers so they can create the next great 3-D geo application.
The plug-in works only with Windows XP or Vista at the moment. "Support for other operating systems is planned in future releases," Google promises.
The following browsers are supported: IE 6.0+ , IE 7.0+, Firefox 2, Netscape 7.1+, Mozilla 1.4+, and Flock 1.0+. Google says that Firefox 3.0 support is coming. Support for Safari will likely arrive when a Mac-friendly version of the plug-in is released.