1. A method for communication analysis, comprising: accepting communication packets exchanged over a network during at least one network session associated with a target user; processing the packets so as to identify data elements viewed by the target user during the network session; displaying identified data elements to an operator, as web pages; receiving feedback from the operator as to which displayed data elements are important; and determining which ones of identified data elements processed from packets accepted after receiving the feedback are to be displayed to the operator, responsive to the received feedback.