13. An information gathering system for optimizing searching as in claim 11 wherein updating the classification system further includes using the highest ranking match to update the classification system by creating a new category in the classification system based on the highest ranking match.
13. An information gathering system for optimizing searching as in claim 11 wherein updating the classification system further includes using the highest ranking match to update the classification system by creating a new category in the classification system based on the highest ranking match. 14. An information gathering system for optimizing searching as in claim 13 wherein the update to the classification system causes a sub-category of one of the business activities in the SIC predefined taxonomy to be created, where the sub-category is indicative of an association between one of the business activities of the SIC predefined taxonomy and the extracted content.