A system and method for collecting and analyzing electronic discussion messages to categorize the message communications and the identify trends and patterns in pre-determined markets. The system comprises an electronic data discussion system wherein electronic messages are collected and analyzed according to characteristics and data inherent in the messages. Objective data is collected by the system for use in analyzing the electronic discussion data against real-world events to facilitate trend analysis and event forecasting based on the volume, nature and content of messages posted to electronic discussion forums. The message posting activity of a plurality of posters can be tracked to determine the tendency of individual posters to initiate or moderate discussions, accurately predict events external to the discussion forums, accelerate or decelerate a buzz level in a forum, or precede a rising market or a falling market.