12. A system comprising: computer-executable instructions configured to: obtain a list of searchable web sites, the list of searchable web sites including a first searchable web site to which users have submitted first queries and a second searchable web site to which the users have submitted second queries, input another query received from an individual user, compute probabilities of the searchable web sites given the another query, the probabilities including a first probability for the first searchable web site and a second probability for the second searchable web site, and create a list of ranked searchable web sites based on the probabilities; and at least one processing unit configured to execute the computer-executable instructions, wherein, in at least one instance, the list of ranked searchable web sites includes the first searchable web site to which the users have submitted the first queries and the second searchable web site to which the users have submitted the second queries.
12. A system comprising: computer-executable instructions configured to: obtain a list of searchable web sites, the list of searchable web sites including a first searchable web site to which users have submitted first queries and a second searchable web site to which the users have submitted second queries, input another query received from an individual user, compute probabilities of the searchable web sites given the another query, the probabilities including a first probability for the first searchable web site and a second probability for the second searchable web site, and create a list of ranked searchable web sites based on the probabilities; and at least one processing unit configured to execute the computer-executable instructions, wherein, in at least one instance, the list of ranked searchable web sites includes the first searchable web site to which the users have submitted the first queries and the second searchable web site to which the users have submitted the second queries. 13. The system of claim 12 , wherein the computer-executable instructions are configured to: apply a pattern matching rule to extract an individual first query from a client-side query behavior log.