If there's a huge challenge facing HomeAway, it's to keep growing its database of property listings while maintaining pricing power.

See, as vacation rentals get more popular with consumers -- and they are -- landlords are obliged to advertise as widely as possible, which means going for the widest possible distribution at the lowest possible price. Alternatives such as TripAdvisor's FlipKey and Holiday Lettings of the U.K. are growing fast as a result, with subscription revenue up 53%  in the third quarter alone. But now HomeAway has an answer for its rivals, and it's a doozy. Find out more in the following video.