If you have a model that's an accurate representation of a structure in the world, and it can be correctly placed in Google Earth, then you have the option to label your model as Google Earth Ready. If you choose this option, your model will be reviewed for inclusion in the 3D Buildings layer of Google Earth. If selected, your model will be seen by everyone who uses Google Earth and has the 3D Buildings layer enabled.
If you'd like to learn more about creating models for Google Earth, feel free to visit the following resources:
