Web search leader Google showed a marked acceleration in U.S. market share gains in February, online audience measurement firm ComScore Networks said.
Google's share of the U.S. Web search market grew to 48.1 percent in February from 47.5 percent in January, the monthly survey showed. The company had gained just 0.2 percentage points, from 47.3 percent, from December to January.
Google has experienced surging growth in its share of the U.S. search market over the past two years, according to ComScore data. In January 2005, Google had 35.1 percent of that business, compared with 31.8 percent for Yahoo. In January 2006, Google had a 41.4 percent share.
Yahoo, Google's closest rival in Web search, had 28.1 percent of the U.S. market in February, the same as in January, while Microsoft's share dipped to 10.5 percent from 10.6 percent, according to ComScore.
IAC/InterActiveCorp's Ask.com saw its share slide 0.2 percent to 5.0 percent in February. Time Warner's network of Internet properties, which includes AOL, dipped 0.1 percent to 4.9 percent.
The ComScore statistics showed Google users conducted 3.3 billion of the 6.9 billion Web searches performed by U.S. consumers, followed by Yahoo with 2 billion and Microsoft with 730 million.