Does Your eCPM gradually improve over time?

I'm getting the feeling that my eCPM with adsense gradually improved over time across all my sites.

There are peaks and troughs - but overall it seems to slowly go up.

I know this could just be a coincidence. e.g:
- increased ad spend on internet
- improving market
- run up to christmas

But it could be because Adsense is split testing what works and what doesn't work well on my site - and gradually serving better ads.

What do others think?

 

It all depends on the advertisers.

 

It was going up but i had a really bad month last month and it dropped by 50%. anyway, can someone explain eCPM to me fully? i dont really understand it too well

if someone is, PM me it, as i don't want to hijack this thread

 

That's means your advertisers were spending less on your niche - or your traffic went down.

 

eCPM is your earnings per 1000 page views and varies depending on yoru click through rate and the price per click of your ads.