Sydneysider Andrew Hallam posts a long and detailed evaluation of Google Earth on his Digital Earth Weblog. He approaches the application from the perspective of a GIS professional contemplating using it for his work. It’ a fascinating and nuanced read, and amounts to some great free feedback/feature requests that Google would be remiss in ignoring.
Andrew is impressed by the network link, however. I wonder why there wasn’t such a thing before in GIS land (is there?) The idea of the network link is great, but it is “just” an XML feed applied to a spatial coordinate system. Wasn’t there ever any need for that before? How did (do) GIS pros deliver oft-updated and even dynamically generated data to a wide set of subscribers?