Systems and methods are provided that can include monitoring of activities of potential customer users, for example, on an e-commerce Web site. Based at least in part on the monitored activities, a notification or alert may be provided to a merchant or a merchant administrator, regarding a potential customer, such as by being sent to a mobile device of the merchant or merchant administrator. Real-time communications may be facilitated or initiated between the merchant or the merchant administrator and the potential customer, such as with regard to a potential purchase, which communications can include the use of mobile devices.