“Cyber Monday” e-commerce sales surged Monday, according to two tracking agencies. And that news was certainly reflected in records set by ChannelAdvisor, which works with many of the world’s top online retailers.

The privately held Morrisville firm says it recorded $18 million in gross merchandise value in Monday sales action. es a variety of services, such as online comparison shopping. Users include Amazon and eBay, which also is an investor in the firm that was founded and is led by serial entrepreneur Scot Wingo.

Internet research company comScore Inc. said Wednesday that online sales spiked 15 percent to $846 million on Cyber Monday. The name was coined by the National Retail Federation in 2005 to describe the surge in online spending when customers returned to work after Thanksgiving and shopped from their desks.

Also, Nielsen Online reported a 10 percent increase in Web traffic to online shopping sites on Cyber Monday, fueled by beauty items, toys and video games.

And more good news for e-retailers is coming.

Ken Cassar, vice president of industry insights for Nielsen Online, said in a statement that he expects Monday, Dec. 15 to be the peak day for online shopping traffic.
According to comScore, e-commerce spending jumped 13 percent over the four-day Thanksgiving holiday weekend as both weekend days and Monday all posted double-digit gains.

The ChannelAdvisor record smashed the previous total of $11.6 million set on Cyber Monday a year ago. The company also topped that record with $15 million in gross merchandise value on Friday.

ChannelAdvisor works with clients through a software-as-a-service model and shares in e-merchandise fees.

The news delighted Wingo, whose company raised $20 million in venture capital in September.

"We are very excited to see record GMV levels for Black Friday and Cyber Monday this holiday season," Wingo said. "This early data shows that even with economic pressures, consumers continue to research, shop, and most importantly buy products via e- commerce channels during this holiday season.

“It’s also important to note that ChannelAdvisor’s customers are growing at a 6- to 8 percent year-to-year same-store-sales rate vs. industry-wide 1percent to down rates, which proves that the ChannelAdvisor Complete suite gives our customers a substantial competitive advantage and allows them to take share at a critical time."

Based on its three primary business categories, ChannelAdvisor reported increases of 168 percent in GMV growth for paid search, 74 percent for comparison shopping engines and 19 percent for marketplaces on Black Friday.

On Cyber Monday, paid surge jumped 173 percent, comparison shopping 77 percent and marketplaces 22 percent.

Paid search includes Google, Yahoo!, MSN and others. Comparison shopping engines include Google product Search and Shopping.com. Marketplaces include eBay, Amazon and Overstock.com.

The Associated Press contributed to this report.