I learned something new today, and that is the whole niche of wireless landlords.  These are the smart cookies who make the roof of their property available for rent by the phone and internet companies to place cell towers on top. We all know these antennae are installed although we rarely notice them, except maybe when we cannot get a signal on our mobile phones.  But there is a whole association dedicated to helping owners get the best return for their real estate by literally using every square inch.  Delivering a wealth of services – from VoIP to video – to a hungry marketplace   is forcing the wireless industry to create, innovate and deploy more efficient technologies on their towers. If you won a building with a convenient roof where a transmitter could be placed, check it out and you could add to your spending power in the new year.