Robert writes "Today's SF Chronicle has an article about Microsoft and Google's new battle for the skies. Both companies now have similar products that combine maps and satellite photos. Roads and driving directions can be superimposed on imagery on both products." From the article: "Google and Microsoft are engaged in a major battle over Internet users. Each has unveiled a series of features designed to keep users loyal and grab a bigger share of the lucrative search-engine market. Yahoo, in Sunnyvale, also is a major competitor, though its executives have yet to express any interest in aerial images. Amazon.com offers street- level photographs of businesses through its A9.com search engine. "