A computing system can receive a pick-up request including a carpool service preference from a requesting user. The system can access user data of the requesting user and a plurality of potential carpool riders, and determine one or more common links between the requesting user and each of one or more carpool riders of the plurality of potential carpool riders. The system may then select the one or more carpool riders to ride with the requesting user in the carpool vehicle, and transmit a notification to the requesting user to indicate the one or more common links between the requesting user and each of the one or more carpool riders.