Why are upscale real-estate developers suddenly offering artists free rent?  The answer: they're looking to up rents by upping their "Cool Quotient!" says the Wall Street Journal.  There's always been an "art scene Paradox": As a neighborhood or city known for its creative community becomes trendy, the artists who made it that way  no longer afford to live there. Learn how several developers are trying to solve it. And have you ever heard of "apartment scalping"?  Its going on in San Francisco and Vancouver and will be hitting 100 cities this coming year. We'll cover that and more--