5. The invention of claim 2 wherein the suppliers are ranked in accordance with a geographical locale for advertisements with associated prior search result sets provided by each supplier in response to prior requests for search result sets.
5. The invention of claim 2 wherein the suppliers are ranked in accordance with a geographical locale for advertisements with associated prior search result sets provided by each supplier in response to prior requests for search result sets. 6. The invention of claim 5 further comprising: determining an estimated geographical locale for advertisements associated with the prior search result sets in accordance with a network address of each supplier.