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.
instant insurance quote $32.37
term life insurance quotes $32.11
consolidation loan $32.03
loan refinance $31.95
car insurances $31.92
safe auto insurance $31.82
insurance auto florida $31.38
auto insurance $31.38
equity line of credit $30.71
gmac mortgages $30.46
mortgages for self employed $30.45
car insurance california $30.17
in car insurance $29.84
best mortgage $29.53
refinancing mortgages $29.43
line of credit $29.27
prequalify loan $28.98
loans com $28.75
business credit report $28.40
whole life insurance quotes $28.17
new york auto insurance $27.72
online mortgages $27.71
student loan $27.61
cheap house insurance $27.45
low cost life insurance $27.25
school loan consolidation $26.99
citi credit $26.80