AdWords in result pages, AdWords on Gmail, AdWords soon on newspapers, AdWords on the radio, AdSense … ? where is the limit?
Google is buying the leftover ad space in the  Chicago Sun-Times and filling it with AdWords ads related to the rest of the content. I wonder how they’re going to charge advertisers. The domains posted are the real domains, so it can’t exactly be pay-per-click.

Here i have few images could give you some future implementations of google adwords. It might looks funny but it could be possible also

Guess What 1 idea just bloop on my freaky mind… Google can accomplish this public ad services rather than internet. Well here is the Idea. They have to use Encoded url referrers with code. Lets say they Post Adwords ads on newspaper so everything will be same as internet ads except the domain part.. they could supply a common domain name (eg. www.googleads.com) and 1 unique parameters, for instance think about Tech2all.com . How they Will Implement Shown Below as an Example:

Tech2All.com
Daily Updated Technology, Sites and
Software Reviews for You.
www.googleads.com/ads12345

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publication today.
www.googleads.com/ads4566432

In that way the request is forwarded to the original domain but it goes through a script which can track the Pay-Per-Click cause that url is unique for that company www.tech2all.com . Also in this redirection script they can put ip tracking engine so that they can track real visitors. On the other hand google can launch web interface for adsense which is for the offline publishers and advertisers. Nothing is impossible.