How Does Mansion Make Money on their exchange?

[Moneyline]

Since Mansion doesn't charge any fees for their betting exchange, how is it possible for them to make any money? This book offers some great lines, but I'm a little concerned about their longterm financial health. Anybody place bets with this book, or have any comments about them?

[llabb]

Don't know that site. Is it like Tradesports? Link please?

[Moneyline]

www.mansion.com (http://www.mansion.com)

New (maybe a year old or so) low-juice site that appears slow to move their lines. Looks like they can be beat, but I'm worried they might go BetPanAm on us. Their main draw is their betting exchange, where players set the odds. My question is how mansion makes money off this because the don't charge any juice on this.

[Roscoe]

It does appear that the exchange has a small amount of "juice". Example, the Phillies/Mets game has a line of -105 and +102.