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.
business credit
$12.92
car financing
$12.91
ski insurance
$12.87
credit help
$12.86
heath insurance
$12.81
credit card debt
$12.81
credit debt management
$12.81
md loan
$12.80
paramount mortgage
$12.79
farmers ins
$12.79
tax write off
$12.79
credit report
$12.78
mortgage qualifier
$12.77
turbo tax
$12.77
loans
$12.71
interest only loans
$12.69
mortgages in ny
$12.65
credit services
$12.62
discover credit card
$12.62
bad credit
$12.61
car loans
$12.60
turbo tax 2002
$12.60
income tax help
$12.60
FINANCIAL KEYWORDS 8