If you want to see several things you can do with the Google Earth API from a webpage you may check below post.

Google Earth API

On the demo page I am just tying out the different methods available of the KH.Interface and adding and modifying things as time goes by.

I am doing also animation of the Tilt , Range, Azimuth and position in the demo.

Demo Page: GEarth API and GMaps API in one page

You can also do XSLT transformation of a GPX file on the fly and have that sent throug the API to GE.

You can do a trace in Google Earth and have that show up in Google Maps at the same time.

Well a lot more is possible (funny is also the Screenshot feature in B&W).

Cybarber