Abstract: A system including a computerized device, including a processing system of the computerized device including one or more processors, and a memory system including one or more computer-readable media, where the one or more computer-readable media contain instructions that, when executed by the processing system, cause the processing system to perform operations comprising identifying a specific purchasing entity buying at the selling business, outputting an invoice that is unique for the purchase, receiving a buyer's selection in which the buyer would like to send a payment request for the invoice to another person for the completion of the payment, and sending a command to an account or device associated by the another person to complete the purchase.

Abstract: A system including: (a) a calendar database adapted to receive calendar events including location information for specified time slots from subscribers; (b) a query engine adapted to receive a meeting request including a time definition, a location definition and a list of invitees including subscribers; and (c) a location module adapted to consider travel times of one or more invitees to and/or from locations of existing calendar events to the location; and (d) a list generator adapted to generate a list of time slots which allow invitees sufficient time to travel to/from adjacent calendar events.

Abstract: A system including: (a) a calendar database adapted to receive calendar events including location information for specified time slots from subscribers; (b) a query engine adapted to receive a meeting request including a time definition, a location definition and a list of invitees including subscribers; and (c) a location module adapted to consider travel times of one or more invitees to and/or from locations of existing calendar events to the location; and (d) a list generator adapted to generate a list of time slots which allow invitees sufficient time to travel to/from adjacent calendar events.