Shoppers this weekend took to stores earlier than ever for an extended Black Friday. Though this year’s annual holiday shopping kick-off was predicted to be bigger than last year’s, shoppers are also turning to online stores more than ever.

The National Retail Federation (NRF) this weekend announced that this “Cyber Monday” is set to be the biggest ever. The group’s survey found that 131 million Americans are planning to shop online today. This represents more than 54% of all those surveyed and is a full two million more than the number of Americans that shopped online last year.

“Despite record-breaking online shopping Thanksgiving Day and Black Friday, holiday shoppers aren’t done yet; we expect Cyber Monday to be bigger than ever,” said Matthew Shay, CEO and president of the NRF.

In addition to regular PC online shopping, mobile shopping will be making huge strides this year. Of those Americans who plan to shop online today, nearly 19% (24.8 million) expect to use their mobile devices to do so. According to the NRF that is a 22% increase over the number who shopped on their mobile devices last year. To prepare for mobile shoppers, more than half of retailers surveyed by shop.org had stated that they made improvements to their mobile infrastructure in the lead-up to the holidays.

“Regardless of the exciting online promotions we’ve already seen, retailers are prepared to pull out all the stops for their Cyber Monday shoppers,” said Vicki Cantrell, executive director of shop.org. “Recognizing that mobile was going to be a big driver of weekend sales, many companies planned well in advance to have their mobile websites and apps cleaned up and their supply chain operations ready for record-breaking digital holiday traffic. We expect to see more focus on mobile as we head into December as companies look for unique ways to compete this holiday season.”