1. A method for determining one or more semantically related terms based on sequences of search queries, the method comprising: examining search query information to associate search queries with a user submitting the search query; establishing a plurality of sequences of search queries, each sequence of search queries comprising one or more search queries associated with a common user and relating to a common concept; receiving one or more seed terms; and determining one or more terms semantically related to the received seed terms based on the established plurality of sequences of search queries.