SAGT Presentation Slides 61-64

Another overlay from the Keyhole Bulletin board.

An extension of overlays are NETWORK LINKS.
These feed in updated information which can change as you look...

SAGT Presentation Slides 65-68

This slide had a series of images of the Palm slowly emerging from the sea, which delegates were invited to identify as soon as they could.
Noel Jenkins has posted a series of excellent lessons making use of Google Earth overlays and KML files at his Juicy Geography site - more later.