Microsoft unveils 3-D maps in bid to upstage Google

SAN FRANCISCO — Microsoft Corp. has upgraded its online mapping service to include three-dimensional tours of 15 U.S. cities, marking another step in its dogged pursuit of Internet search leader Google Inc.

With the improvements unveiled Monday, Microsoft is hoping to upstage Google’s popular “Earth” software, which enables about one-third of the world’s population to obtain an aerial view of their homes and neighborhoods.

Google says it has distributed more than 100 million free copies of the Earth software since its June 2005 introduction.

Microsoft, the world’s largest software maker, is touting its 3-D version of “Virtual Earth” as a more compelling alternative that provides “photorealistic” images of the 15 targeted cities: San Francisco, San Jose, Seattle, Boston, Philadelphia, Los Angeles, Las Vegas, Detroit, Phoenix, Houston, Baltimore, Atlanta, Denver, Dallas and Fort Worth, Texas.

Additional cities are expected to be added in upcoming months.

“We think this is going to open a new dimension in search,” said Stephen Lawler, general manager of Virtual Earth. “It’s the beginning of the 3-D Web.”

Google so far has been able to brush aside Microsoft’s competitive threats during the past two years to maintain its wide lead in Internet search and generate earnings growth that has mesmerized Wall Street. Google’s stock price has increased by more than fivefold since its August 2004 initial public offering; Microsoft’s shares have inched up by just 6 percent during the same period.

Executives from Microsoft and Google are among a long list of prominent Internet leaders scheduled to appear at a three-day industry conference called “Web 2.0” that begins in San Francisco on today.

Many of the conference presentations are expected to highlight technology like Microsoft’s 3-D maps.