“Pocket listings” have been a hot topic across the country, with one recent study saying 43 percent of all transactions last year took place outside of the MLS. This type of transaction has been around for a very long time and it is not likely to go away. The question becomes whether the risks are worth the (arguable) potential rewards…

http://www.inman.com/2014/04/09/pitfalls-of-pocket-listings-for-buyers-and-sellers-outweigh-potential-upsides/