It is better to have all your vital website-related accounts such as Google Analytics, AdSense, AdWords and Feedburner in your primary Google account. So I promptly moved all my feeds and analytics data to the primary account. The only hurdle was how to move my AdSense account to the primary Google account. I guess till some time ago there was no way to move your AdSense account from one email address to another.
Adsense publishers usually complain that they only get peanuts per click. They get so disheartened that they eventually give up on AdSense. If you find yourself in the same quandary, don’t throw in the towel just yet. You could merely be targeting the wrong niches!