Providing electronic transmission of credit card transaction data and electronic payment data via a global computer network; Providing electronic transmission of secure e-mail; Providing electronic transmission of contactless payment data via the internet; Providing private and secure real time electronic communication over a computer network; Information transmission via electronic communications networks; Electronic transmission for others of securities and financial information via computer linking services, namely, communicating and routing trade information involving orders, entry and execution services, to others via a global computer network