1. A computer implemented method of processing network traffic in a network, comprising: extracting web content from the network traffic to and from a client computer at a node in the network, wherein extracting web content comprises at least one of intercepting the network traffic using a web browser plug-in module implemented by the node and intercepting the network traffic by configuring the node as a proxy; performing a statistical analysis of the web content to detect product purchasing activity by a user of the client computer, wherein the step of performing the statistical analysis comprises searching the web content for web pages that conform to at least one template that comprises at least one mandatory criteria and at least one optional criteria, wherein the at least one template is used to identify web pages that meet the at least one mandatory criteria and the at least one optional criteria prior to detecting any product purchasing activity associated therewith, wherein the at least one template comprises a product description page template that comprises criteria requiring web pages that comprise a product price and web pages that have been navigated to from a previously identified product search or that comprise search terms used in a previously identified product search; extracting product attributes associated with the product purchasing activity, wherein the product attributes are associated with one or more products searched for or purchased by the user of the client computer; categorizing the web content associated with the product attributes, wherein the product attributes are analyzed to categorize the one or more products associated with the product attributes; storing the product attributes in a log implemented in a memory on the network, wherein the log is configured to allow inspection of the product purchasing activity; and sending an alert over the network in response to at least a portion of the product attributes in the log, wherein the at least a portion of the product attributes are designated as requiring an alert.