Everybody needs money. That's why they call it money.

From full global headquarters, this is Motley Fool Money.

It's the Motley Fool Money Radio Show. I'm Chris Hill. This week we'll revisit my conversation with Stephen Dubner, the co-creator of Freakonomics.

We kick things off with Zillow CEO Spencer Raskoff, our own Tom Gardner sat down with Raskoff to talk about the growing online real estate industry and the business of Zillow.

So compare and contrast Zillow and Trulia. What does Trulia as a brand bring that Zillow didn't have?

Trulia has a very different design for starters. It's a different color palette but more importantly it's more of a list-based view. Zillow is more of a map-based view.

You'd be surprised among real estate shoppers how passionate people are with a preference for one or the other. Trulia has also done a good job of going deeper on some local data at the property level.

Crime data for example. I mean, Trulia is really advanced and done a better job of focusing on Zillow. Zillow's point of differentiation has always been the fact that it's all homes.

That your house is there and my house is there and everyone's house is there. Not just those that are currently on the market.

And so that we think allows Zillow to be relevant during more stages of the homeownership life cycle.

Not just when you're in the throws of a transaction but when you're a homeowner or a renter or you're just sort of vaguely interested in the market.

You might also look at Zillow as a way to keep track of your most valuable investment in real estate.

Do you think that there are more acquisitions like Trulia or that's the big win in this zone?

Well, this definitely won't be our last acquisition. This is this Trulia will be number nine.

And we continue to look at others even as we speak. It's it's certainly our largest by far.

And there's a lot of work to do firstly just to get this deal to close which will take some time.

But then once it closes, there's a lot of work to do to make sure that the benefits that we think will come from the acquisition actually come.

But we'll continue to look at other acquisition that helps people come online.

If such a small percentage of the market is online doing this and obviously the future is all pointing this direction.

Is there something that accelerates that? I mean not a particular company but just a category or a zone?

Well, I mean we're riding the co-tails of the mobile revolution.

So what's good for Apple and Google and Microsoft is good for Zillow because more and more people using smartphones and tablets.

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