
The search giant led the pack with a total of 3.5 billion search queries performed during the month.
Yahoo maintained its second place ranking with 27.5 percent of US searches, or two billion queries, followed by Microsoft with 10.9 percent at 798 million queries.
The Ask network registered 5.2 percent or 379 million queries, and Time Warner had five percent or 368 million queries.
Americans conducted 7.3 billion online searches in March, up six percent on February and 14 percent on March 2006.
All search engines increased their US traffic, suggesting that either the internet population grew slightly in March, or US users are making more searches.