I have a job search website which I have been using AdSence on it for a few years. At the beginning it was not too bad, $100 per month, but since last year, it became worse, $100 per 2 month, I found it hard to find some site to advertise. Last year, I though to start a blog site as a sub-domain of this main site, hopped the blog could reach more visitors, I am using AdSence ads in blog too. So far, my blog site is much better popularity than the main site, but the clicks on AdSence ads are much less than the clicks from the main site, it seems people came to blog not click ads that much, and also per click earning is less than non-blog site! Anybody can recommend Adsence ads appear in what part of blog page is better.