Yeah for Adsense to work you really need to be super-niched and have a ton of traffic. I have tried the inpost adsense and it really didn't work, I 'm talking 0% CTR.
I recently started creating more niche blogs and found that the Clickbank ads I have on my blogs do much better than the Adsense. My most recent blog has out done my
Living on Adsense blog in it's first 7 days due to ClickBank.
I think that if you want to make serious money with Adsense you need to focus the site entirely on getting Adsense clicks. I am starting to think that blogs may have just "too much going on" and distract from the Adsense.
I may need to rethink my whole blogging agenda...why did I read this thread?...why did I write this post?