To uphold the quality and reputation of Google AdSense, all
publishers who apply are reviewed according to these program policies.

You may notice that some policies are only relevant to
publishers who have elected to receive certain Google services. For
example, references to "search box" only apply to publishers who have
elected to receive Google search services, and policies regarding the
placement of Google ads on a site are only relevant to publishers who
have elected to receive contextual ads. Please read the policies
carefully and assume that they all apply to you, unless the specific
policy explicitly states otherwise.

Please note that we may change our policies at any time, and pursuant to our Terms and Conditions, it is your responsibility to keep up-to-date with and adhere to the policies posted here.

• Up to three ad units may be displayed on each Web site page.
• A maximum of two Google AdSense for search boxes may be placed on a page.
• 
  A single link unit may be placed on each Web site page, in addition to
  the ad units and search boxes specified above. Link units are
  considered to be 'Google ads' for purposes of these program policies.
• 
  A single referral button per product may be placed on a page, in
  addition to the ad units, search boxes, and link units specified above.
  Referral buttons are considered to be ‘Google ads’ for purposes of
  these program policies.
• No Google ad may be placed on any non-content-based pages.
• No Google ad or Google search box may be displayed on any domain parking websites, pop-ups, pop-unders, or in any email.
• No
  Google ad may be placed on pages published specifically for the purpose
  of showing ads, whether or not the page content is relevant.
• Elements
  on a page must not obscure any portion of the ads, and the ad colors
  must be such that any ad elements, including text and URL, are visible.
• Clicks on Google ads must not result in a new browser window being launched.

Alternate Ads

If you have elected to receive contextually-targeted ads, you can make
sure that your advertising space is always being used effectively,
either by targeted Google ads, or by your own choice of content by
specifying an image or ad server of your choice. However, you may not
specify Google ads as your alternate ads.

Client Software

A site or third party cannot display our ads, search box, search
results, or referral buttons as a result of the actions of any software
application such as a toolbar. No Google ad, search box, or referral
code may be pasted into any software application. Web pages displaying
our ads, search box, search results, or referral buttons may not be
loaded by any software that can trigger pop-ups, redirect users to
unwanted websites, modify browser settings, or otherwise interfere with
site navigation. It is your responsibility to ensure that no ad network
or affiliate uses such methods to direct traffic to pages that contain
your AdSense code. Accounts involved in this type of activity may be
permanently disabled.

Code Modification

Any
AdSense ad code, search box code, or referral code must be pasted
directly into Web pages without modification. AdSense participants are
not allowed to alter any portion of the ad code or change the layout,
behavior, targeting, or delivery of ads for any reason.

Competitive Ads and Services

We
do not permit Google ads or search boxes accessing Google search
services to be published on web pages that also contain what could be
considered competing ads or services. If you have elected to receive
contextually-targeted Google ads, this would include all other
contextually-targeted ads or links on the same page as Google ads. This
would also include ads throughout the site that mimic Google ads or
otherwise appear to be associated with Google on your site. Although
you may sell ads directly on your site, it is your responsibility to
ensure these ads do not mimic Google ads. If you have elected to
receive Google search services, this would include other search
services on the same site and non-Google query-targeted ads. We do
allow affiliate or limited-text links.

Copyrighted Material

In order to avoid associations with copyright claims, website
publishers may not display Google ads on web pages with MP3, Video,
News Groups, and Image Results.

Dialers

Your site must not require or prompt an end user to download
a dialer in order to view content of the site.

Incentives

Web pages may not include incentives of any kind for users to click on
ads. This includes encouraging users to click on the ads or to visit
the advertisers' sites as well as drawing any undue attention to the
ads. For example, your site cannot contain phrases such as "click
here," "support us," "visit these links," or other similar language
that could apply to any ad, regardless of content. These activities are
strictly prohibited in order to avoid potential inflation of advertiser
costs. In addition, publishers may not bring unnatural attention to
sites displaying ads or referral buttons through unsolicited mass
emails or unwanted advertisements on third-party websites. Publishers
are also not permitted to use deceptive or unnatural means to draw
attention to or incite clicks on referral buttons.

Labeling Ads

Publishers may not label the ads with text other than "sponsored links"
or "advertisements." This includes any text directly above our ads that
could be confused with, or attempt to be associated with Google ads.

Language

The AdSense ad code for contextually-targeted ads may be placed on
pages with content primarily in any of our supported languages. Ads
must not be displayed on any page with content primarily in an
unsupported language.

Prohibited Clicks and Impressions

Any
method that artificially generates clicks or impressions is strictly
prohibited. These prohibited methods include but are not limited to:
repeated manual clicks or impressions, incentives to click or to
generate impressions, using robots, automated click and impression
generating tools, or other deceptive software. Please note that
clicking on your own ads for any reason is prohibited, to avoid
potential inflation of advertiser costs.

Site Content

Site may not include:

• Excessive profanity
• Violence, racial intolerance, or advocate against any individual, group, or organization
• Hacking/cracking content
• Illicit drugs and drug paraphernalia
• Pornography, adult, or mature content
• Gambling or casino-related content
• Excessive advertising
• Any other content that promotes illegal activity or infringes on the legal rights of others
• Pop-ups,
  pop-unders or exit windows that interfere with site navigation, obscure
  Google ads, change user preferences, or are for downloads. Other types
  of pop-ups, pop-unders, or exit windows may be allowed, provided that
  they do not exceed a combined total of 5 per user session
• Excessive, repetitive, or irrelevant keywords in the content or code of web pages
• Deceptive or manipulative content or construction to improve your site's search engine ranking, e.g., your site's PageRank
• 
  Incentives (monetary or point-based) to users or third-party
  beneficiaries for online activity including, but not limited to,
  clicking on ads or links, performing searches, surfing websites,
  reading emails, or completing surveys
• Sales or promotion of certain weapons, such as firearms, ammunition, balisongs, butterfly knives, and brass knuckles
• Sales or promotion of beer or hard alcohol
• Sales or promotion of tobacco or tobacco-related products
• Sales or promotion of prescription drugs
• Sales or promotion of products that are replicas or imitations of designer goods

Site Functionality

Your site must not contain broken links and must be launched,
functioning, and easily navigable.

Site Responsiveness

Sites must respond adequately to support requests and enquiries
of their users.

Webmaster Guidelines

In addition to the standards above, AdSense participants are required to adhere to the webmaster guidelines posted at http://www.google.com/webmasters/guidelines.html. Some relevant items from the guidelines are included below for your reference:

• Do not load pages with irrelevant or excessive key words.
• Do not employ cloaking or sneaky redirects.
• Do not create multiple pages, subdomains, or domains with substantially duplicate content.
• Avoid hidden text or hidden links.
• Keep the links on a given page to a reasonable number (fewer than 100).
• Do
  not participate in link schemes designed to increase your site's
  ranking or PageRank. In particular, avoid links to web spammers or "bad
  neighborhoods" on the web as your website may be affected adversely by
  those links.