EPC dropping fast!

My earnings per click are 1/5th the level from 2 months ago...

[jescro]

Has anyone else noticed a significant drop in their Earnings per click on Adsense? Only two months ago I was averaging over $1.60 per click, and over the last month it has continued to drop. It's now siting at around $0.40.

This is pretty frustrating, especialy as I have not changed any of my site's content etc. - Does anyone know why this is happening, and if I can expect ECP levels to return to what the once were anytime soon?

Any input is appreciated

[my2cents]

My last few days are really down. Today is a new all time low.

Perhaps something to do with the end of the month?

[dongjp]

This is my case:

After I added some new pages to my site, the ads displayed is inherited from parent pages, and get a higher EPC and CTR. Then 1 to 4 weeks later, the ads are changed to be either targeted or non-targeted to the content, and in most cases, both EPC and CTR droped.

[nyet]

many advertisers (my company included) have separated out their bids for Adsense and reduced the bids. We bid a max CPC for searches at average of $2 and average $.50 for Content matches.

Many advertisers are learning how to do this. Adsense clicks have a much lower ROI for us, so we are now bidding down accordingly.