Maybe, maybe what Court says on
I'm going to give it a go.
BTW, you are on the right place here. Court recommends using HubPages as Hubs get more Google link love than your own blogs (usually).
Now, if your Hubs are not about subjects that people are really searching for with Google, you won't get much traffic from Google to your Hubs. And traffic is what you need to get AdSense clicks.
Then, if you do have subjects people may be looking for, you have to handle your keywords right to get the traffic.
All this means is that you need a subject people are looking for so that you have a CHANCE of getting traffic, then you need the keywords so that you will get on the first page of Google SERP for when people search for those keywords.
(You've got to be on the first page of Google search results for a given keyword to have a chance of getting AdSense clicks.)
My rants, for example, are not what people are looking for on Google. So, after I get them out of my system, and increase my Hub page count, then I am going to get down to business with keyword targeted Hubs.