5. The system of claim 4 , wherein each of the different keyword combinations is assigned to one of the lines.
5. The system of claim 4 , wherein each of the different keyword combinations is assigned to one of the lines. 6. The system of claim 5 , wherein each line comprises: a plurality of data points, wherein each data point represents one of the keywords of the particular keyword combination assigned to the line, wherein the individual data points, which each represent one keyword, combine represent the keyword combination assigned to the line; the total number of instances a website link containing the keyword combination assigned to the line has been received by the system; and number of instances a website link containing the keyword combination assigned to the line was associated with fraudulent activity.