SEO tips and review

Study and review on SEO, SERP, Pagerank, keyword density, link popularity, adsense, ezine...etc

my revenue is never so low...

Yesterday my revenue dropped by 50%. It was the worst day among these months...
I checked WebMasterWorld and found that many other webmasters were suffering from this decline too, from small sites to big sites earning hundreds per day. Some are complaining adsense is showing MFA on their website, which means no money at all !

What is even worse, it was reported some google servers were down too. I wondered if it was related... Is google tweaking or doing some fix ?

BTW, I just checked my adsense stat again, and saw one new click since the new day started (a new day starts at 16:00 HKT), and the click value has boosted "A LOT" ! Is google paying penalty for us ? hahaha... Lets hope its the truth and this value continues.