"Greening the Multiple Listing System: Ssutainable Data in the Presnetation of Real Estate" Council of MLS, April 28th, 2015

"Many people believe that the multiple listing service is a single, monolithic, centralized database of real estate transactions that has stored the essential information for residential sales across the country. Nothing could be further from the truth."

http://www.councilofmls.com/greening-the-multiple-listing-system-sustainability-data-in-the-presentation-of-real-estate/