An explanation of the jargon phrase that I keep wanting to explain but always fail.
Want to buy an out-of-print book, a folk song recorded on a 78-rpm disc or some 18th century ceramics from Lunéville? You know already that the Internet can connect you with such esoteric purchases.
What you may not know is that these products help make up “the long tail,” a phrase that describes the never-ending shelf life of products that are not mass-market, top-40 favorites.