20. The non-transient computer readable storage medium of claim 17 wherein the operation further comprises: adding categories to the ranking based on an action of the human search assistants and ratings of the human search assistants.
17. A non-transient computer readable storage medium having an instruction stored therein for causing a computer to execute an operation including qualifying a keyword, comprising: ranking categories of a keyword detected in a query; ranking a category based on human assisted searches performed for queries indicating the keyword; choosing a human search assistant based on the keyword when a human assisted search is requested; providing content identifying the query, the keyword and the category to the human search assistant when the category is ranked highest; and qualifying the query based on the category and an action received when the human search assistant is performing a search.