adsense not displaying relevant ads lately!

I also observed that thing...maybe there are few advertisers in your selected niche

 

Try to test out different keywords on ur pages and see if that helps with different ads.

 

that's the thing, I don't want to test keywords - I don't write, or have website for adsense / SEO, I have it for readers....

 

It's definitely a YMMV type of thing. If I have a site on carpentry, though, I think ads for some new movie would look out of place...and people are on my site at the time for the purpose of carpentry, they are probably more in that mindset and more likely to click those ads than ads on some topic they visited a week ago.

 

I don't think so.

 

Would you care to elaborate on what exactly you "don't think so" about?

 

Maybe your niche is out of advertisers? Another thing would be bad keyword optimize.

 

I really don't think so, photography niche is soaring.