J : J is the tenth letter of the English alphabet. It is a later variant form of the Roman letter I, used to express a consonantal sound, that is, originally, the sound of English y in yet. The forms J and I have, until a recent time, been classed together, and they have been used interchangeably.

Example:
How does Flying J get flavor all the way in thier chicken?

Taxonomy
Digital Cameras, Video Games, DVDs, Camcorders, iPods, Office Products, Products, J&R Electronics, Satellite Radios, Software, deals, gift card, Boutique, shop, Appliances, the New York Yankees, Hot Deals, Deals Newsletter.

Defination from the web:
J&R Music & Computer World