Abstract: Transactions carried out using a communications network are facilitated by systems and methods which enable representatives of a marketing party to initiate private, one-on-one communications with potential buyers. When a potential buyer expresses an interest in particular goods or services by logging onto a web site a unique identifier can be assigned to that visitor. A representative can be alerted to the presence of the visitor. Being aware of the visitor enables the representative to initiate interactive communications with the visitor. The progress of the visitor through the pages of the site can be tracked to assess the effectiveness of the site.