Here is a list of High Paying Google AdSense Keywords by Geekologist. I don't know how he obtained the top words, but anyway it looks quite close to the actual situation.
mesothelioma $84.08
mesothelioma attorneys $80.93
mesothelioma lawyers $69.04
malignant pleural mesothelioma $55.95
Asbestos Cancer $54.17
mesothelioma symptoms $53.66
peritoneal mesothelioma $52.27
trans union $51.91
lung cancer $43.12
search engine optimization $30.19
mesothelioma diagnosis $28.70
home equity loans $20.06
Baines and Ernst $18.47
consolidate loans $17.74
Lexington law $17.68
Lexington law firm $16.81
debt problems $16.28
register domain $15.74
home equity line of credit $15.61
affiliate programs $14.33
refinance $14.21
video conferencing $13.63
payday loans $13.21
credit counseling $13.02
asbestos $12.79
debt solutions $12.64
cash loans $12.13
refinancing $12.09
broadband phone $12.08
debt management $11.86
fast loans $11.81
credit card processing $11.75
credit reports $11.59
making money on the internet $11.58
merchant account $11.46
line of credit $11.42
money magazine $11.27
Adsense $11.13
credit counselors $11.02
identity theft $11.00
make money at home $10.84
free credit $10.76
cash advance $10.64
consumer credit counseling $10.63
freecreditreport $10.61
make money from home $10.35
free credit reports $10.26
make extra money $10.21
domain registration $10.19
adwords $10.08
citifinancial $10.06
my fico score $10.01
web hosting $09.88
