Forrester Research & Shop.org team together each year to create "The State of Retailing Online," which predicts the growth of several online categories. Here's how much the top three online categories are expected to grow this year:

Health & Beauty: 61 percent
Apparel: 42 percent
Flowers, cards, etc.: 41 percent

"This isn't really news to us," says Dexter Yager. "We've always known that health & beauty would explode online. The trends prove we've always been on the right track and that we're about to see a lot of rapid growth in the business."