A system and method for facilitating a user's purchase of products which are compatible for use with a component of the user's processor system. The particular type of the user's component may be determined without input from the user. An intermediary server system is configured to receive a purchase request from the user's processor system specifying the particular type of the component. In one embodiment of the invention, the intermediary server system is configured to identify products which are compatible for use with the particular type of component. If a particular vendor is not specified by the user, the intermediary server system may also identify one or more vendors offering to sell the compatible products. Additionally, the intermediary server system may forward a notification of the purchase request to a vendor server system associated with a selected vendor. The vendor server system is configured to transmit a purchase invitation to the processor system specifying one or more products which are compatible for use with the particular type of component.