eCPM rate towards end of month

[fuzzybunny]

Hi All,

I started adsense at beginning of Jan and I found webmasterworld a couple of weeks ago. I've been really impressed with the level of knowledge sharing on this board and I would like to contribute to this pool if I can.

Question:

I've noticed my eCPM rate has been gradually going down as we moved towards the end of the month. My CTR and impressions has remained constant. Does anyone have any insight into this?

thanks.

[OptiRex]

Welcome to WebmasterWorld fuzzybunny

Great name:-)

Your experience is typical of many Adsensers. The general explanation seems to be that advertising campaign funds run out towards the end of the month, some notice it by the day and complain of problems.

A friend's site has literally doubled his eCPM today!

[21_blue]

In addition to end of month variations, I think there is another dynamic that may come into play as well: a site's eCPM may drop from its' initial level, perhaps due to smartpricing, perhaps due to the impact of an additional supply of ads in the market.