Adsense topics
 

What topics are best for Adsense, you ask? Any topic that Adwords advertisers are placing ads for. The more competitive the topic, the higher the ad cost, and the higher the Adsense payout. Classic topics are:

Personal health
Personal finance
Personal credit
Personal relationships
Automobiles
How to make money
Dating services
SEO
Free (anything)
Investing
Jobs
Gambling
Web development
Child Care
Credit problems
Music
Games
Electronics
etc, etc, etc.

Of course, if you select a highly competitve topic, your site will be competing for traffic with all those sites that paying for the high-paying ads.