| 摘要 |
In an embodiment an item is offered for download at an initial offering, which may be free. In an embodiment, reviews of the item are sought. After receiving a predetermined number of orders for the item, increasing the price of the item. In an embodiment, the buyers establish accounts in a virtual bank and purchase the items with funds in the buyer's account in the virtual bank. In an embodiment items are presented to a potential buyer in an order dependent on the number of downloads of the items. Any of the above embodiments may be used alone or together with one another in any combination.
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