An information categorization system comprising: a potential recipient output harvesting module configured to harvest information content generated by a potential recipient; a potential recipient profile generation module configured to generate a recipient profile representing one or more likely interests of the potential recipient; a comparison module adapted to receive an information content profile representative of content of information content to be categorized and, in response to receipt of the information content profile, to compare the information content profile with the recipient profile to determine a match indicating the potential recipient is likely to be interested in the information content; and an information categorization module configured to categorize the information content into information content for which the comparison module has either determined or failed to determine a match between the information content profile and the recipient profile.