Retail sales over the Internet are set to grow this holiday season as more new buyers use online channels and consumers gain more confidence using credit cards over the Net.

A report released by Jupiter Research on Thursday predicted that holiday retail sales over online channels will reach $17 billion, a 21 percent jump over the same period in 2002. Nearly 40 percent of online users intend to do some or all of their holiday shopping online, an increase of 18 percent from last year.

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