I've been doing tons of research and turned up nothing. I need something that can keep track of my ads all the way through my funnel, even a sale that is made weeks later - so it MUST use cookies. Also, it would be a huge bonus if it could integrate with multivariate split testing software so I could test my landing pages and pair them with the ads the traffic came from to figure out the ideal combination of factors (and ads) for best ROI. I find it very hard to believe there is not a good solution for this. No, Google is not "good" - it's inaccurate and the results are not in real time. I'm not sure they track sales with cookies either. Been stuck on this for SO LONG! could really use some help if you know of something.