1. A computer-implemented method for modifying a search-result item ranking, the method comprising: receiving by a server-side rank modifier a search-result item that is deemed by a search engine to satisfy a user query and that is assigned by the search engine an order position in which to be presented to a user; searching by the server-side rank modifier a database to determine that the search-result item includes a classification; based on the classification, modifying by the server-side rank modifier the order position of the search-result item, thereby assigning to the search-result item a modified rank; and providing the search-result item to a client to be presented according to the modified rank.