this year.

Google Earth is starting to incorporate more and more data out of the box (so to speak). A few month ago I ran across some historic maps of London that needed to be loaded separately, but recently I read an article that directed me to the fact that you can now access these maps — and many more historic maps — directly from the ‘Layers’ menu. To view this content expand the ‘Featured Content -> Rumsey Historical Maps’ in the Layers panel. By using transparency sliders you can see what has changed over the years. [via ZDNet]