A variety of systems, methods and arrangements are implemented in connection with a processor-controlled routing arrangement. According to one such implementation, a computer-implemented method facilitates payment provided between disparate payment networks of buyers and sellers. The method uses a computer-arrangement to interface with a social website that has user profiles, each user profile corresponding to a user identifier, and for use with a seller website that offers products or services for purchase by users and that generates transaction data for a current user accessing the website. A current user identifier corresponding to a current user profile and the transaction data is communicates to the computer-arrangement. A buyer payment network is selected from a plurality of disparate buyer payment networks that are each associated with the current user identifier. Based upon the selection, the transaction data is formatted to facilitate payment against the selected buyer payment network.
