A method and system for discovering a control event from electronically published documents and received data streams is provided, in which a computer control program identifies electronically published documents and data stored in a plurality of network servers which potentially contain control events relevant to the control of goods and/or services, the control events identified by reference to user interest identifiers. Identified material is analyzed by a classification program to determine whether control events are present. A control event classification is assigned to documents and received data determined to contain at least one discovered control event, the assigned control event classification and information identifying the associated document and data is stored in a classification database, and a report of discovery of documents and data containing control events is to be provided to a user. The report may include a link to the control event classification and/or its associated document or data.