As the holiday shopping season starts in earnest, several research reports are predicting not only an increase in Internet sales, but also that a majority of Americans will be researching their purchases online before buying in stores.

According to research conducted by DoubleClick’s marketing performance division Performics, 58 percent of adults surveyed plan do conduct online research during this years’ holiday season. Performics also predicts that each of the Mondays between Thanksgiving and Christmas will see an up tick in sales compared to regular sales, and not just Monday November 27, the most commonly cited "Cyber Monday."

In a separate report, Harris Interactive found in a report commissioned by Google Checkout that 40 percent of employed U.S. adults say they'll be doing at least some of their online holiday shopping from work this year, with one in four of those shoppers logging on to track down that perfect gift on Monday, November 27.

“It’s highly relevant to the holiday season, the predominance of people that do use online research as part of a purchase process,” said Cam Balzer, vice president of strategic planning at Performics. “Nine out of ten people that make a decision after research online end up buying exactly what they are looking for.”

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