Free shipping is the new normal for online shopping this year

This holiday season, the big draw in online shopping will be the free shipping. Consumers are demanding it, and with this year's bareknuckle competition, retailers have no choice but to give it to them.

Four out of five retailers will offer free shipping with minimum purchases this holiday, according to a survey by Shop.org, the online arm of the National Retail Federation. And 57.4 percent will offer no-minimum free shipping offers sometime during the season.