Esentially ,Google is what is known as a scraper site.It uses web scraping,that is,it makes the use of web crawlers to index content in the form of search results.Now this is a fair and legal use of other people’s content.that is, for the purpose of indexing .However ,some scraper sites make use of the scraped content and plagiaries it for their own use.
How do they use this content?

Essentially ,an illegal scrapper site Is created for monetizing content from Adsense .Such a site is in the parlance called an MFA or Made for Adsense site.Scrapers take content from sites that have highly searched keywords and use them to generate high revenue clicks from unknowing users who click on these sites thinking them to be some other legitimate sites for example,the site www.everyrule.com is a shopping site that claims to offer great prices on a host of products .But the links displayed are almost all Adsense Ads.So anything you click is an adsense click for the webmaster of Everyrule ,who is making money off these clicks.

Visit http://www.adsblacklist.com/ for a whole bunch of Blacklisted MFA sites.

Google AdSense supports publishers in several different languages. Applications for participation in the program can be for sites with content primarily in:
Chinese (simplified)
Italian
Chinese (traditional)
Japanese
Croatian
Korean
Czech
Norwegian
Danish
Polish
Dutch
Portuguese
English
Romanian
Finnish
Russian
French
Slovak
German
Spanish
Greek
Swedish
Hebrew
Turkish
Hungarian
In addition, AdSense for search is available in Arabic and Bulgarian. These languages are not supported for AdSense for content pages.
You can select your site's primary language during the application process. If you're approved, AdSense will serve relevant ads to your pages in the appropriate language, even if your site contains multiple supported languages.
Please also be aware that placing the AdSense code on pages with content primarily in an unsupported language is not permitted by the AdSense program policies.

Google AdSense is a fast and easy way for website publishers of all sizes to display relevant, unobtrusive Google ads on their website's content pages and earn money. Because the ads are related to what your users are looking for on your site, you'll finally have a way to both monetize and enhance your content pages.
It's also a way for web site publishers to provide Google search to their site users, and to earn money by displaying Google ads on the search results pages.

The program is free, and combines pay-per-click and pay-per-impression advertising - meaning you get paid for valid clicks on the ads on your site or search results pages as well as impressions on your content pages. So go ahead and try this program.

If you comply with Google Adsense's program policies, just complete their online application and select either or both of AdSense for content pages and AdSense for search. One application gets you approved for both AdSense and AdSense for search - you can decide to use any combination of these products on your pages.
Google Adsense guys review your application and follow up with an email within 2-3 days. If you are accepted into the program, you can log in to your new account and get the HTML code to insert into your web pages.

Keep in mind that participation in AdSense requires you to have a website. If you don't have one, you can sign up for a free blog at www.blogger.com or create and publish useful, attractive web pages using Google Page Creator, at pages.google.com.