Abstract: A personalized search engine system and corresponding method which is used by an identified user for retrieving documents on a corporate network or intranet. The identified user being related to a unique personalization identifier (UPID) and to a list of group personalization identifiers (GPIDs). The system comprises a search engine interface for obtaining a query from the identified user; a search engine for finding documents matching the query; and a ranking engine for ranking the documents matching the query in order of relevancy, where the ranking is partly based on a previously calculated document rating for the UPID of the identified user, where the ranking is further based on a previously calculated document ratings for each of the GPIDs of the identified user.