Abstract: Processing network requests includes receiving a request for a target media element available at a requested location. The request can identify a media repository that stores the target media element. A substitute media element that has content approximately equivalent to content of the target media element can be determined. The substitute media element can be stored on a sub-network connected to the network. A selection page having a link to the location of the substitute media element on the sub-network can be generated. A response to the request for the target media element can include the selection page, so as to offer a user a choice of media source.

Abstract: Processing network requests includes receiving a request for a target media element available at a requested location. The request can identify a media repository that stores the target media element. A substitute media element that has content approximately equivalent to content of the target media element can be determined. The substitute media element can be stored on a sub-network connected to the network. A selection page having a link to the location of the substitute media element on the sub-network can be generated. A response to the request for the target media element can include the selection page, so as to offer a user a choice of media source.

Abstract: Processing network requests includes receiving a request for a target media element available at a requested location. The request can identify a media repository that stores the target media element. A substitute media element that has content approximately equivalent to content of the target media element can be determined. The substitute media element can be stored on a sub-network connected to the network. A selection page having a link to the location of the substitute media element on the sub-network can be generated. A response to the request for the target media element can include the selection page, so as to offer a user a choice of media source.

Abstract: Processing network requests includes receiving a request for a target media element available at a requested location. The request can identify a media repository that stores the target media element. A substitute media element that has content approximately equivalent to content of the target media element can be determined. The substitute media element can be stored on a sub-network connected to the network. A selection page having a link to the location of the substitute media element on the sub-network can be generated. A response to the request for the target media element can include the selection page, so as to offer a user a choice of media source.

Abstract: Methods, computer systems, and computers for responding to requests for content that is subject to network policy can provide a landing page that displays a search result related to the requested content. The landing page can be specific to one or more of the content being requested and the identity of a user making the request.

Abstract: Transaction data is received from a payment gateway over a computer network. The transaction data represents a pending transaction between a remote computer and an online merchant system. The transaction data includes a location of the transaction and an amount of the transaction. The transaction data is applied to a database to obtain tax data for the pending transaction and the tax data is transmitted to the payment gateway. Subsequently, a transaction record representative of execution of the pending transaction is received from the payment gateway. The transaction record is stored in a data store. A record storage confirmation indicator is transmitted to the payment gateway over the computer network.

Abstract: Processing network requests includes receiving a request for a target media element available at a requested location. The request can identify a media repository that stores the target media element. A substitute media element that has content approximately equivalent to content of the target media element can be determined. The substitute media element can be stored on a sub-network connected to the network. A selection page having a link to the location of the substitute media element on the sub-network can be generated. A response to the request for the target media element can include the selection page, so as to offer a user a choice of media source.

Abstract: Methods, computer systems, and computers for responding to requests for content that is subject to network policy can provide a landing page that displays a search result related to the requested content. The landing page can be specific to one or more of the content being requested and the identity of a user making the request.