Satellite Mapping Protocol

Satellite photos have been available from differentbecause the results are there for all to see.
Internet sources for several years. But in mostMicrosoft is surely watching developments closely.
cases, the images were hard to navigate and theMicrosoft's mapping service, Virtual Earth, is a poor
quality was limited. Google Maps and Virtual Earthsecond cousin to Google's offering but then again a
both offer easy access and an often stunning levelslow start has never stopped Microsoft from a fast
of detail.finish. Yahoo! has a Local search engine of its own.
So, the space shuttle astronauts aren't the onlyAmazon.com's A9 site has added some street-level
people who can enjoy such high flying views of Earth.photographs to its mapping service giving its users a
Two of the Internet's biggest companies, Microsofttantalizing view of what the future may hold.
and Google, are competing to deliver aerial photos ofBoth services get their satellite photos from the
your hometown and your back yard to yoursame sources. Their images of Louisville show the
computer screen.same leafless winter forests and brown lawns and
Earlier in 2005, Google enhanced its Web searchthe same barge passing under the Kennedy Bridge.
service and online mapping product (maps.google.com)The age and detail of the images can vary from one
by adding satellite photos of North America. Lastregion to another, and many shots can be several
week Microsoft followed suit with MSN Virtual Earthyears old. Microsoft was criticized for showing a view
(virtualearth.msn.com).of New York City that still had the T win T owers of
Both services are free, and both give you athe World Trade Center. And the Louisville images
fascinating view of your world, from the house nextlack a few recent additions, such as 4 th Street Live
door to a mountain or skyscraper on the other sideand The Courier-Journal's new press building.
of the country.Views of urban areas have more detail than images
In the satellite map space, who are the companiesof towns, farmland or forests.
that will dominate mapspace? Google is the obviousMicrosoft gets points for getting you closest to your
early leader. Its Google Local service, although indestination. With Virtual Earth, you can zoom down
many ways still quite rudimentary, is now offeringto the bleachers at Louisville Slugger Field. With
free online listings for businesses. This could be theGoogle, you have to download a separate program
beginning of a full-fledged directory service. Googleto get that level of detail.
has been exceptionally astute. By cannily releasing itsBoth online services offer features that could help
service for outside use, it has harvested hundreds ofyou find your way around an unfamiliar city. Type
man-years of free software development and"WiFi" with a Google image on the screen and you
experimentation. It's got a front seat at the cuttinginstantly see labels for all of the Internet access
edge. The experiments come at a price, though,points within your view.