Did you know there are URL channels (Adsense Setup> Channels) and Custom Channels for the ads (Adsense Setup> Channels or the possibility of adding a channel when creating ad)? These two options you can enable the same kind of visit you had ever start earning twice, thrice or even over 10 times more money than ever. I personally very much to test the above because you are correct for each ad can give much impression of numbers, how many clicks, CTR, etc. At the end you can see which ads on the most carries, which carries a maximum position and the look ad the most carries. For some domains I manage over 10 times more clicks and the money just to get the deployment and choosing the right ad.
URL channels that you add the AdSense Setup> Channels> URL Channels you separate the statistics of URLs so that you can separately track each domain, subdomain, folder or even a single URL. Custom channels allow you to track each ad separately wherever he was and whatever he was. You can get for each ad, and later separate statistics on it to decide what and where. These two options are the most useful options that exist in this whole story because they give you everything on a platter, and can be set within 5 minutes.
Why would earn $ 15 if with a bit of testing you can do $ 75?
