Google AdSense Rules

Invalid Clicks and Impressions

Google prohibits any publishers in the AdSense program from manually clicking on their own ads for the sole purpose of increasing ad revenue. This means that publishers can't click on their own ads, encourage others to do so or pay for services that use humans or robots to click on ads for the sole purpose of increasing their revenue. Publishers will not be able to use AdSense on their websites if they engage in invalid practices of this nature.

Prohibited Content--Adult and Gambling

Publishers in the AdSense program must not place AdSense ads on any website with nude photos or videos, adult language, sex toys and products, sexual tips, sexual fetishes or links to any site that has such content. Websites with gambling content, which include those that allow visitors to place bets in exchange for cash or prizes or links to other gambling sites, can't participant in AdSense.

Prohibited Content--Drugs, Violence, Crime and Hate

You can not use AdSense on websites that feature drugs, alcohol, tobacco, legal and illegal prescriptions, drug paraphernalia or herbal drugs. Websites that feature violent and gory content that feature bloodshed, fight scenes and violent accidents can't have AdSense advertising on them. Neither can sites that promote illegal activity such as selling fake IDs, fake passports or Social-Security cards or sites advocating hate groups or exclusion or bias based on race, religion, gender or sexual orientation.

Payment

Google will not issue payment to a publisher until her account has reached a certain payment threshold, which in 2010 was $100. If your account has reached $100 or more at the end of the 30-day billing cycle, Google will pay you by check within 30 days after the billing cycle has ended.

Traffic

Google AdSense discourages the use of traffic-exchange programs and unsolicited emails as a method of increasing traffic to a publisher's website. Although traffic-exchange programs are not prohibited, they are discouraged since they may lead to invalid clicks. Publishers also must not send unsolicited emails (spam) that feature links to sites with AdSense content.

Changing Ads and Prohibited Placement

Publishers may not produce content that is intended to look like Google ads on their website. You must not place Google ads in a floating box which allow ads to hover over a web page, place ads in pop-up windows, enter keywords into IFRAMES to affect ad targeting, put ads into a software application, alter the AdSense code or place ads on a page which produces more than three pop-up windows.