4. The computer-implemented method of claim 1 , wherein the first object is a user of a social networking server and the second object is an advertisement (ad).
4. The computer-implemented method of claim 1 , wherein the first object is a user of a social networking server and the second object is an advertisement (ad). 5. The computer-implemented method of claim 4 , wherein an attribute of the first object is a demographic datum; wherein another attribute of the first object is a targeting keyword associated with the ad; and wherein a first correlation is whether the user with the demographic datum has had an interaction with the targeting keyword associated with the ad.