Here is a detailed list of top paying google adsense keywords from financial sector. This is probably the best paying niche along with medical field. The data is obtained directly from google's tools itself. But no claims are made about the accuracy of the data, due to the volatile nature of the adwords keyword bidding.
credit card acceptance $15.81
health insurance quote $15.81
consolidating debt $15.79
aircraft loan $15.79
credit counselors $15.73
my fico score $15.64
credit counceling $15.63
capital one credit card $15.57
loan $15.55
credit card rates $15.53
virginia mortgages $15.53
va streamline loan $15.50
instant credit report $15.49
motorcycle insurance $15.46
debt management programs $15.45
chase mortgage $15.44
cash loans $15.42
insurance virginia $15.41
christian debt counseling $15.40
debt help $15.33
debt program $15.31
discover credit $15.30
settle debt $15.30
debt programs $15.29
loan finder $15.25
taxes online $15.22
credit counciling $15.21
classic car insurance $15.19
how do i get out of debt $15.18
loan till payday $15.07
FINANCIAL KEYWORDS 12