Way up for me. Either adsense is paying more per click or my [google_ad_section_start(weight=ignore)] just kicked in. Only time will tell
Yes, my are way down. It appears to be because PSAs are showing all over my site, bizarre PSAs in Polish language. Have you checked if you are getting a lot of PSAs all of a sudden?
I wrote a blog entry about this just a few days ago. Here is the main part of the entry: * It could be the keyword your site is relates to was going through a bidding war that has stopped, * It could be that smart pricing has influenced things, * It could be Google re-crawled your site, decided it was about something else, so it changed the ads, * It could be your traffic has slowed down, * It could be that whatever was being advertised on your site was seasonal and no one is interested any more * It could be that a major advertiser ran out of budget for the month so prices plummeted.
Let me join those in saying my eCPM has skyrocketed! Unfortunately, my traffic fell apart. It's always something.
Unless you are getting 1000s of clicks a day you really don't have enough data to determine any kind of statistical trend on a day-to-day basis. I imagine most of us have a small enough amount of traffic on a daily basis that any derivations are totally within norms and really lead to be looked at over much bigger sample sizes. I could get 500 clicks out of 10,000 impressions. If I look at my next impression by itself and it is not a click, it means nothing.