Dear StrongMinder Well first of all congrats for getting close to US $ 50 a day which is not an easy task from adsense. Secondly don't be disappointed by what I am writing. But let me tell you that something wrong have been done somebody might have clicked on the topmost multiple ads which cost higher as compared to the adsense ads at the bottom of the page, which lead to that amount(49.5) If you are getting an average of US $ 40 in the previous week its OK other wise you need to email Google Adsense and tell them about that you are getting an unusual earnings. If you don't do that you might receive a mail from Google that your account has been suspended for invalid click activity. Its better to be cautious than repenting. Regards Tehmina
I think i would go along with tehmina11 suggestion as that is one hell of a jump in revenue in a short time duration and that will hoist the red flag at the Big G Headquarters.But well done anyway !!!
Congrats! This is called 'AdSense Mountain Range' Sometimes you have mountains like Everest or K-2 and Sometimes, you will find very low Valleys.