At the office on Monday, look over the shoulder of a co-worker or two. You might find some of them shopping online.

They are just trying to save money.

This Monday, Nov. 30, is Cyber Monday, which is online retailers’ answer to Black Friday.

It is reportedly the day when some of the best discounts of the holiday season can be found at online retailers.

According to a survey by BIGresearch for the National Retail Federation, 53.5 percent of workers with Internet access, or 68.8 million people, will shop for gifts from work that day.

Cyber Monday first came about mid-decade, but the idea didn’t really draw attention until 2006, when online shoppers broke the single-day online sales record by spending $608 million, according to Information Week magazine.

Last year, the research firm ComScore reported, $846 million was spent.

The concept, like most related to the Internet, just continues to grow.

In 2009, the NRF expects nine out of 10 U.S. retailers to have Cyber Monday deals on their Web sites, which is up from about 84 percent last year.

Deals on specific products, one-day sales and free shipping are expected to be the most common promotions available.

Get tips for online shopping and more to prepare you for Cyber Monday