I have read many hubs writing for and against google adsense, I am certain that those that all write against adsense get low earning in their adsense account because they don't prepare writing hubs that will suit their audience. To write hubs that will generate money then don't even think about writing hubs that  will suit your audience because what they will want has been written 100% for them so there is know need to click on your ads but if you writing for fan then go ahead and write hubs that will suit your audience.

 I recommend  searching for hubs that write for google adsense not against, when reading hubs that write for adsense you will discover mysteries on how to earn more money on adsense.

 Why do't you try learning about phrases and keywords for your hubs because that will help you get highest cost per-click ads on your hub.

 To increase your adsense earning, stop displaying auctions, videos, amazon product etc and pictures on you hub. I prefer 1 or 2 pictures on my hub than having many that will not solve the problem of low earning.

 Many hubbers get more traffic to their hubs daily, some even get 1 million page view a month, you may be wondering if that will generate more money.... Sometimes. But not to their expectation, it is because of 100% accurate hub writings that suit the audience and that will get more traffic but less earnings.

 Enjoy hubpages, that is the greatest money making site that i will recommend for you, rest and see your adsense growing every day, all you need to do is write better hubs and choose the right topics and phrases, don't always accept suggestions from hubspages. eg. hubpages can give you adsense advice but the best phrase is adsense tips.