Finding items to buy.

These items are for sale by Amazon or other merchants.

Finding information about those items.

This item information includes such things as the titles of tracks on a CD, the rating of a movie, the kind of metal used in a piece of jewelry, accessories that go with an item, the author of a book, or the composer of a piece of music.

Getting customer reviews of items.

Show customers what others think about the items on sale.

Create a fully-functional shopping cart.

Add items that are immediately available or ones that will become available in the future, such as in a pre-sale of a book.

Adding, removing, and otherwise modifying the items in the shopping cart.

Have full control over the contents of their shopping cart.

Getting information about the company selling the item.

Show customers what others think about the merchant selling the item.

Finding similar items for sale.

Generate additional sales by suggesting other items similar to the ones the customers are buying.

Purchasing the items in the shopping cart.

Once the customer decides to buy the contents in their shopping cart, Amazon takes care of the shipping, payment, and order fulfillment, or notifies you to take care of the same.

Find items on a friend's wishlist, wedding registry or baby registry and purchase those items.