4. The computer system of claim 1 , wherein the search results are based on a specified search attribute, and wherein the search result ranking is associated with the specified search attribute.
4. The computer system of claim 1 , wherein the search results are based on a specified search attribute, and wherein the search result ranking is associated with the specified search attribute. 5. The computer system of claim 4 , wherein the tuning input is applied to a value associated with the search attribute.