"It is brutal to track inventory in our industry, but now that we've got it down, we're continuing to evolve online, " says Andrew Florance, CoStar's CEO.

FORBES: Evolution, not revolution

"The terrorists would be very disappointed to know they only took out 3.6% of Manhattan office space, " says Andrew Florance, the CEO of CoStar, a real estate tracker.

FORBES: Rubbing elbows

"The terrorists would be very disappointed to know they only took out 3.6% of Manhattan office space, " says Andrew Florance, chief executive of real estate tracker CoStar Group.

FORBES: Rubbing Elbows

Similarly, Caitlin Florance, 27, has been mega-commuting from New Jersey to New York for the last few years to work at financial services company AIG and business insurance provider Hiscox without the high costs of city living.

FORBES: The Cities With The Most Extreme Commutes