The UC Riverside Department of Computer Science and Engineering is studying the problem of correlating micro-blogging activity with stock-market events, defined as changes in the price and traded volume of stocks. Specifically, they collect messages related to a number of companies, and they search for correlations between stock-market events for those companies and features extracted from the micro blogging messages. Software San Diego (previously known as the San Diego Software Industry Council) has invited researchers to present details of their experimental results measuring the correlation of the stock market events with these features, using Twitter as a data source. More information and online registration is here.