Of course, The Long Tail, might be yet another buzz word that catches the zeitgeist, then quickly gets lost in the ever-changing world of the media, but its principles are defining and will be felt long after the phrase is forgotten.
"The Long Tail" was first coined by the American writer Chris Anderson. Beginning in a series of speeches in early 2004 and culminating with the publication of a Wired Magazine article later that year, Chris described the effects of the long tail on current and future business models.
The basic principle of the Long Tail is that products that are in low demand or have a low sales volume can, if managed correctly, collectively make up a market share that rivals or exceeds the relatively few current bestsellers and blockbusters. That is, if the store or distribution channel is large enough.