I have a medical site with Adsense Ads.. First i was getting 10$/day, I've made some changes to my sites which increased visitors and page views. After that I made 40-50$/day! for 2 days and (10000 page views & 80 click on Ads / day).. To that time it was OK. After that my earning decreased: from 50-40-30-20-12 / Day (with the same 10000 and 80 click a day!) I put every kind of AS in my site (3 blocks/page and 1 link), and i've read something about smart pricing.. Is it what happening to me? Please help me. Thank you in advance.
i got smart priced and the same thing happend to me when i used to earn only cents or just nothing wait patiently.
Don't worry, it's smartpricing. Probably bulk of your traffic doesn't convert into sales, so Google has to adjust.