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Walmart advertises Cyber Monday sales on the company's website on November 26, 2012 in Chicago, Illinois. Americans are expected to spend $1.5 billion while shopping online today, up 20 percent from last year.

Retailers are predicting another uptick in online shopping this holiday season. Of course, it's convenient, you can shop in your jammies, and you can browse the whole Web for the best deal out there. 

At least that's the idea. A Wall Street Journal investigation found that online shops are pricing products differently for different people. WSJ reporter Jennifer Valentino-Devries joins the show with more.