The newest version of Google Earth includes 3-D photorealistic buildings, sunlight (with shadows on those realistic 3-D buildings), and a Spiderman-esque swooping action. Here's a "photo" I snapped of downtown San Francisco.

You can just see the 3-D photorealistic Golden Gate Bridge peeking up in the background. See some more examples at Google's LatLong blog.
Google Earth now displays location-specific news from the NY Times.
I read a lot of news by surfing the Internet, as do many of my colleagues and friends, and I've always dreamed of a way to browse news based on geography. What's happening in Paris today? What are the top headlines in Japan?
God's Eye View presents four important Biblical events as if captured by Google Earth, including The Crucifixion, Noah's Ark, and Moses parting the Red Sea.
Google Earth recently added some maps from the David Rumsey Historical Map Collection to their software, so you can just click them on and off on the globe. Included are a US map from 1833, a 1680 map of Tokyo, Paris from 1716, and a world map from 1790. I spent some time exploring the map of New York from 1836. Here's a screenshot of the southern tip of Manhattan with the present-day buildings turned on:

A larger version is available on Flickr. Google Earth continues to be a fantastic software product. It's almost more of a game than an atlas or educational program...so much fun.
Related: I did a project using Google Earth called Manhattan Elsewhere and made a scrollable, zoomable version of Viele's Map of Manhattan.
Eyebeam's Mike Frumin has released OGLE (OpenGL Extrator), a software package for extracting 3-D data from Windows applications. This means you can do stuff like grab the 3-D likeness of your World of Warcraft character and print it out on a 3-D printer or insert him into a Manhattan landscape (grabbed from Google Earth). Announcement here.
A first look at Google Earth, the replacement for the Keyhole mapping software. "View Railroads, Subway lines and Bus routes along with all their stops. Or select multiple locations and have Google give you directions."