The way I see it (please correct me if I’m wrong) what needs to happen is (i) one of the sidebars needs to be sized to fit the selected AdSense box, (ii) text colours & sizes are chosen so the AdSense box doesn’t look like one, and (iii) you make sure you type your AdSense ID correctly in the code (no laughing please).

Anything missing?

I have two niche sites that are extraordinarily easy to write for - but that’s because they are subjects I’m genuinely interested in (and would read all the news about them anyway!), so generating unique content is easy! They often don’t make a lot but I think that’s probably down to the WP theme more than anything, generally updating them causes a few visitors and clicks, I’d love to get more but we don’t always get what we want do we (otherwise I’d be on a beach in the sunshine today!)

In the case of Nursing School Programs, the content can be as in-depth as possible, but could never replace a link to an actual nursing degree program. A lot of the ads are from schools. Clicking on those ads gets people closer to making a decision about school. It’s a win-win situation if there ever was one.