last week 908 clicks $78 now 2608 clicks $39

I think may be your new pages have got low CTR

 

No not only widgetbucks, it depends on the site....I would only use widgetbucks if you sold a product or your page was about reviewing products. But I was thinking of azoogle....or adbrite, on some sites I make more with adbrite than I do with adsense.....You just have to do some testing....