The cyber holiday weekend winner is … Amazon

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With mobile shoppers getting the jump on discounts by buying big on Thanksgiving Day and e-commerce sales bubbling up over the long weekend, the online holiday shopping season has arrived in full force.

So who is this year’s biggest winner on the web? Survey says, Amazon.

Amazon sales jumped 30 percent on Thanksgiving Day and continued to climb throughout the weekend, suggesting a massive Cyber Monday climax, according to data compiled by e-commerce software and services provider ChannelAdvisor.

ChannelAdvisor calculates its same-store sales metric by tracking the sales of more than 3,000 retailer customers to determine year-over-year growth.

Amazon saw 50 percent  sales growth on Black Friday, 49 percent growth on Saturday and 59 percent growth on Sunday, making it the undisputed winner in terms of same-store sales growth, according to ChannelAdvisor data.

Above: Holiday 2010 vs 2011 -- Amazon

Those numbers sound impressive, but comparatively speaking the online retailer and Kindle maker is a bit behind its growth of last year. In 2010, the company skyrocketed to 80 percent sales growth by Cyber Monday, albeit in a far less linear fashion (as ChannelAdvisor’s chart depicts above). And with some of the big deals Amazon is offering customers today, there’s still a chance it could have another record day.

Across the board, e-commerce sales showed 17 percent growth on Thanksgiving Day, 20 percent growth on Black Friday, 21 percent growth on Saturday and 27 growth on Sunday.

eBay has faired remarkably well, as early data from the company already suggested, and ChannelAdvistor puts the company’s sales growth at 15 percent for each day of the holiday weekend.

Above: Holiday 2010 vs 2011

Altogether, the data suggests that online consumers are scoffing at the idea of just two blowout holiday discount days. Instead, they’re spending continuously online and via mobile, and at accelerating levels throughout the Thanksgiving Day holiday weekend.

[Image via luxuryluke/Flickr]