1. A method for determining a link rating for a keyword of an object associated with a keyword, the method comprising: receiving, by an electronic circuit, one or more linking objects that contain the keyword, wherein the one or more linking objects each contain at least one link to the object; determining, by the electronic circuit, a drop off rate for each linking object, wherein the drop off rate relates the total number of links in the linking object to the total number of keywords in the linking object. for each linking object: determining, by the electronic circuit, the location of the at least one link relative to the keyword; determining, by the electronic circuit, an importance of the keyword in the linking object relative to the object based on the location and the drop off rate; determining, by the electronic circuit, a partial link rating for the linking object based on the importance and a rating of the linking object; determining, by the electronic circuit, a link rating for the keyword by summing the partial link ratings for all linking objects; storing, in a non-transitory computer readable memory, the link rating for the keyword associated with the object.