 While the above example deals with the combining of many different categories of products, supplier convergence can also occur with just one primary product.Examples of this trend would be the growth of book superstores such as Borders and Chapters, who have replaced many independent bookstores not by offering different products, but by offering a greater number of books that only several smaller stores combined could match.The boom of technology and the internet in recent years has been a key factor behind the trend of supplier convergence.