I know how to measure keywords on adwords to see if they are getting impressions and a high/low CTR - but when people are clicking through on my ads...I know on GA - to look at the bounce rate and see how long they are on the site. I guess my question is this: How do I know which KW is being used on adwords that customers are mostly going through to get to my "sales page". I believe you create a funnel - but I think there is more to it...