33. The non-transitory computer-readable memory device of claim 32 , further comprising: one or more instructions to receive an initial query; one or more instructions to receive a second query following receipt of the initial query; one or more instructions to determine whether the received second query is a refinement of the received initial query; and one or more instructions to associate the received second query with the received initial query upon determining that the received second query is the refinement of the received initial query.
33. The non-transitory computer-readable memory device of claim 32 , further comprising: one or more instructions to receive an initial query; one or more instructions to receive a second query following receipt of the initial query; one or more instructions to determine whether the received second query is a refinement of the received initial query; and one or more instructions to associate the received second query with the received initial query upon determining that the received second query is the refinement of the received initial query. 34. The non-transitory computer-readable memory device of claim 33 , further comprising: one or more instructions to perform searches for each identified particular refinement query suggestion, associated with the particular search query, to identify at least one document based on each identified particular refinement query suggestion; one or more instructions to identify terms within the identified at least one document; one or more instructions to generate weights for the identified terms; and one or more instructions to generate a term vector for the identified at least one document based on the generated weights.