10. A method as recited in claim 1 , wherein combining the one or more suggested search terms comprises: removing duplicate suggested search terms from the suggested search terms obtained from the two or more suggestion sources; and ordering the suggested search terms in the combined set of suggested search terms based on the suggestion sources from which the suggested search terms are obtained.
10. A method as recited in claim 1 , wherein combining the one or more suggested search terms comprises: removing duplicate suggested search terms from the suggested search terms obtained from the two or more suggestion sources; and ordering the suggested search terms in the combined set of suggested search terms based on the suggestion sources from which the suggested search terms are obtained. 12. A method as recited in claim 10 , further comprising: identifying, for each of the multiple suggestion sources, a number of suggested search terms to be included in the combined set of suggested search terms; including in the combined set, for each of the multiple suggestion sources, the number of suggested search terms from the suggestion source if at least the number of suggested search terms is obtained from the suggestion source; and including in the combined set, for each of the multiple suggestions sources, one or more suggested search terms from another suggestion source if at least the number of suggested search terms is not obtained from the suggestion source.