Google, Amazon.com | featured news

Revenue at Barnes & Noble stores fell 10.9% during the holidays, as sales of Nook devices slipped, a sign that the retailer is falling behind in the tablet battle with Amazon, Apple and Google.

After watching Amazon corner the online retail market, Google is in talks with merchants to begin a delivery service that would allow users to order items online from local stores and receive them within a day. But does it make sense for Google to directly take on the online retail giant?

"You know, Google, I think, in some ways, is more competitive and certainly is trying to build their own little version of Facebook," Zuckerberg says. "But you know, when I look at Amazon and Apple and I see companies who are extremely aligned with us, right? And we have a lot of conversations with people at both companies just trying to figure out ways that we can do more together, and there is just a lot of reception there."