Anyone out there know of a free source news analytics software / library package? Or does anyone have experience with commercial packages such as this one? http://thomsonreuters.com/products_services/financial/financial_products/a-z/news_analytics/ I am investigating ways to incorporate "market sentiment" based on the news at the time. I am guessing that the Thomson Reuters service is very expensive, and out of reach of retail traders. Any ideas would be appreciated.