When we performing the keywords analysis using adwords to check for Keywords values, but in actual facts if there is a click, the value always does not equal with the research that we have performed the research, for example, weight loss per click will be USD1.03 in adwords but in reality my click for Weight Loss usually will be around USD0.30 each time when I check my Adsense account, just wonder anything that I have missed? Please share if you know. Thanks