Anyway to validate this claim? FWIW: I personally see bb ads everywhere and often. I don't visit bb too often (maybe once or twice a month) I tried using SpyFu.com (Keyword Research) and found the following chart: It appears your statement is accurate, "adsense budget hasn't grown proportionately to the number of domains added." Below from SEMRush.com seems to match up with SpyFu. ; Their Alexa Rank is also losing traction... On May 18th, 2016 @ownyx.com reported bb alexa ranking to be at 30,703. Today it's at 50,482. Disclaimer: This is not my field of expertise. Expert opinions welcomed!