Later on when they matured in selling books, they enhanced their business model to sell multiple items in the web. But in reality the competition is more fierce and diversified. Therefore, if there is a traditional book store exist anywhere in the world then that book store is a competitor to both of those web sites since those web sites are accessible from any corner of the world. It is very crucial for those two businesses to keep this notion in mind when dealing with their business strategies. Similarly they will be somewhat effected by any change in the same business or the technology used, in any part of the world since they are competing in a global marketplace.
Same analogy is true for other items that both web sites are trying to sell.
In today s technically advanced environment it is very unlikely to lack that capability. But the fact is, more computer literate people have the tendency to purchase things from the net. When work force and the household become more and more computer literate, they tend to save time and use small portion of their intelligence to buy products using computer rather than taking a trip to the traditional bookstore. Besides computers with Internet capability is available everywhere now a days. And even if someone doesn t know how to use the compute and inter net they can learn it very easily or ask someone to check things for them quickly.