Room Nights and stays are Airbnb's way of saying hey, we're here.

What happens when room nights morph into more permanent sharing and gig-economy dwellings for the fresh-out-of-mom-and-dad's-basement set?

Better take a good look now at what Airbnb has done in and to the hospitality sector and ask hotel companies whether they look at this burgeoning empire as a fad or a factor.

Quartz staffer Alison Griswold writes that the Airbnb offensive is strongest where it counts, in major markets:

Nationwide, Airbnb’s entire-home and -apartment listings are thought to make up 2-4% of the overall hotel room supply. But in the biggest US markets, those same Airbnb listings account for an estimated 8-15% of the hotel supply.

Read more >