Abstract: A method and system is described for notifying users of an arrival of a document. A respective query is received from each respective user. Each respective query includes at least one query term and at least one query condition. For each respective query, each one of the at least one query term is stored in a database only if the one query term is unique with respect to other query terms stored in the database. The document, which includes a document term being associated with the document, is received. The document term is compared with the stored query terms. For each respective query, a determination is made whether all of the at least one query condition of the respective query is satisfied as a function of the comparatione between the document term(s) and the stored query terms. For each respective query, if all of the at least one query condition of the respective query is satisfied, the respective user is notified of the arrival of the document.