I didn't know what pork roll was either, and from the way Theresa made it sound, I thought it might be like a pizza roll only filled with pork. Maybe because I make pork potstickers that are to die for if I do say so myself. Anyhow since I love googling so much here is what I found:
Taylor ham is the common name for pork roll, a food developed by John Taylor of Trenton, New Jersey, late in the 19th century.
Taylor is the brand name for pork roll made by Taylor Provisions, Inc., of Trenton. Taylor also manufactures pork roll under the Trenton brand. Trenton by Taylor has been an advertiser on the outfield wall at Mercer County Waterfront Park in Trenton since it opened in 1994. Other companies making pork roll include Kohler Provisions and Loeffler Gourmet.
The product is generally eaten sliced and grilled, like Canadian bacon. A slice fits neatly on a round roll, and it is frequently eaten as part of a breakfast sandwich, most often also including egg and cheese.
Pork roll generally comes in one-, three-, and six-pound sizes, as well as six-ounce boxes containing eight single-thickness slices or four double-thickness slices. The product is seldom available for retail or restaurant sale outside of New Jersey and adjoining areas like Philadelphia, Pennsylvania. However, a message board posting in 2004 showed that Taylor ham had been located at a supermarket in Valdosta, Georgia. There are also marketers selling pork roll on the Internet and shipping it around the United States.