Facebook has built a novel implementation, but this isn't a new idea or product. Similar to how they used to buy servers and now build them to spec, they probab

Facebook has built a novel implementation, but this isn't a new idea or product. Similar to how they used to buy servers and now build them to spec, they probably used to buy these and now design and build them. http://www.disc-group.com/products/bd-series-benefits/ http://www.disc-group.com/products/bd-series-benefits/