How can you make money just buying and selling traffic?

The first time I heard about Chris Carpenter's "GoogleCash" I
thought it was crazy. How can you make money just buying and selling
traffic?

But after downloading the ebook and watching the videos, I quickly
realize that it's got to be the world's fastest instant business,
really...

Here's how it works:

1) You go to a website that pays commission and you sign up for
their affiliate program.

2) You go to Google and write a few AdWords ads and send people to
that site.

3) You get checks in the mail and your profit is the difference
between the cost of your AdWords and your affiliate checks.

You can literally do this in as little as 30 minutes. It's amazingly
clever. And if you have a dozen different GoogleCash businesses
running all at the same time, it can add up to a full time income -
with no website, no customer service problems, and no boss.

Very nice. Check it out here:
Google Cash - How to Earn Thousands Writing Google AdWords Part Time

To your success,Jara