If ads are related to some item or some service that is expensive,

obviousally the ads will pay good.

My CPC varies from 0.01 to around 2$.

But when i reduced number of ad units to one now i earn more.

I wonder if MFA's is a good topic to have a site on? After all, there are lots of them :)

Seriously, picking keywords as the others have said is a waste of time, effort and money. My site is a niche site, and has a good lot of visitors and good serps placing because of the content. Without the content it would be nowhere. If you start a niche site, you do need to have the ability to make it an authority in that niche to do the best you can. That way people will link to you, you will get lots of truly organic traffic and the position in serps will go up. Adsense rewards will follow.

Ack - I've been away from the forums, and late to the thread. Is it too late to make the ...

"Where is the bucket of money? I heard there was a bucket of money here. Can you show me where the bucket of money is? Thanks."

...joke?

Not too late to make it, but too late to get it. I have the bucket of money, and I'm not giving it up!

best paying
medicine, legal, yachts, boats, travel, realty, luxury cars etc

least paying
music, recipes, food, beer, fruit, video games etc

Got the picture?

huh? I buy all my fruit and beer on the internet.
)

well if you think logically pick a topic where the adverts that are displayed will be advertising expensive products, does it not work kinda like that? ive heard consumer electronic would be good for a high CPC and that kinda fits in with what ive just said.

Nursery rhymes pays best. At least for me.

I've had good results with pages on widgets. The ads for those pages are always right on target, and they pay oh-so-well.

I saw "mesothelioma" on a billboard off I94 in Detroit last weekend. Had a heckuva time climbing up to click on it, I tell you what.

I have to block mesothelioma site wide ads from one of my sites. It doesn't even have anything to do with mesothelioma.