Find Money with Google’s AdSense for Search Program
“… AdSense for search, a great way for site owners to make money from search.”

Here’s how to make blogging pay
“Setup is simple…Google’s algorithm targets ads to your readers based on the page’s content.”

Using Google to Promote Your Business
“Here’s how you can use your favorite search engine’s cool tools to market your online business.”

Section Targeting by Google AdSense
“This just makes so much sense! As a publisher and Webmaster, you can tell your contextual ads, which content is the real content on the page.”

The Business of Blogging
“And new, easy-to-use advertising services such as Google AdSense, which frees content creators from having to deal with actual advertisers, have breathed fresh life into online media.”

What Is AdSense
“Google’s AdSense program lets you sell advertising space for … ads that are relevant to your site’s content pages.”

Google Expands CPM Program
“Google will now allow all advertisers … the ability to target their contextual ads to any publisher site within the AdSense network, pay on a cost-per-impression basis, and serve image and animated ads.”

Google Opens Up Beta of AdSense for Feeds
“…Google is opening up the beta program to all of its publisher partners.”

Google improves AdSense with Ad Links
“Ad Links has been designed as a complement to the contextual ads served through AdSense.”

Google’s AdSense a bonanza for some Web sites
“Google has a simple proposition for anyone who owns a Web site: Let it put up links to its ads, and Google’s AdSense program will give you a piece of the action when someone clicks on them.”

Google’s AdSense: Unassailable Logic in Search of a Response
“”…all they do is put a piece of code on every Web page and we figure out how to deliver the most relevant advertising keywords to that page of content.”

The Google Economy => The Blogosphere
“One idea emphasized here is that the ‘heart and soul’ of making money through blogging is Google’s AdSense program.”

Understanding Google AdSense
“The website maintenance related to Adsense is very easy and requires very little effort.”

Google offers to rev up sites with two new services
“Google Inc. unwrapped two new search services for Web site publishers on Friday, promising to help them increase traffic and revenue from their sites…”

Google AdSense is an ad serving program run by Google. Website owners can enroll in this program to enable text, image and, more recently, video advertisements on their sites. These ads are administered by Google and generate revenue on either a per-click or per-thousand-impressions basis. Google is also currently beta-testing a cost-per-action based service.

Overview :

Google uses its search technology to serve ads based on website content, the user’s geographical location, and other factors. Those wanting to advertise with Google’s targeted ad system may sign up through AdWords. AdSense has become a popular method of placing advertising on a website because the ads are less intrusive than most banners, and the content of the ads is often relevant to the website.

Currently, AdSense uses JavaScript code to incorporate the advertisements into a participating site. If it is included on a site which has not yet been crawled by the Mediabot, it will temporarily display advertisements for charitable causes known as public service announcements (PSAs). (The Mediabot is a separate crawler from the Googlebot that maintains Google’s search index.)

Many sites use AdSense to monetize their content. AdSense has been particularly important for delivering advertising revenue to small sites that do not have the resources for developing advertising sales programs and salespeople. To fill a site with ads that are relevant to the topics discussed, webmasters implement a brief script on the sites’ pages. Sites that are content rich have been very successful with this advertising program, as noted in a number of publisher case studies on the AdSense site.

Some webmasters work hard to maximize their own AdSense income. They do this in three ways:

1. They use a wide range of traffic generating techniques including but not limited to online advertising.
2. They build valuable content on their sites which attracts AdSense ads which pay out the most when they get clicked.
3. They use copy on their websites that encourage clicks on ads. Note that Google prohibits people from using phrases like “Click on my AdSense ads” to increase click rates. Phrases accepted are “Sponsored Links” and “Advertisements”.

The source of all AdSense income is the AdWords program which in turn has a complex pricing model based on a Vickrey second price auction, in that it commands an advertiser to submit a sealed bid (not observable by competitors). Additionally, for any given click received, advertisers only pay one bid increment above the second-highest bid.

History :

The underlying technology behind AdSense was derived originally from WordNet, Simpli (a company started by the founder of Wordnet, George A. Miller) and a number of professors and graduate students from Brown University, including James A. Anderson, Jeff Stibel and Steve Reiss.^[1] A variation of this technology utilizing Wordnet was developed by Oingo, a small search engine company based in Santa Monica founded in 1998.^{[2] [3]} Oingo changed its name to Applied Semantics in 2001,^[4] which was then bought by Google for $102 million in April 2003.^[5]

AdSense for feeds :

AdSense for feeds has remained in its beta state ever since its original announcement. Only selected AdSense users have been allowed to sign up for it, and no more users are being admitted to the program.^[7]

AdSense for search :

As of September 2007, the HTML code for the AdSense search box does not validate as XHTML, and does not follow modern principles of website design:

• non-standard closing tags such as </img> and </input>
• the boolean (minimized) attribute checked rather than checked="checked"
• presentational attributes other than id, class, or style, such as bgcolor and align
• a table structure used for purely presentational (non-tabular) purposes
• the font tag

In addition, the AdSense ad units use the document.write() Javascript code, which does not work in browsers when rendered with the application/xhtml+xml MIME Type. The units also use the <iframe> HTML tag, which is not validated correctly with the Strict or Transitional doctypes.

The terms of the AdSense program forbid their affiliates from modifying the code, thus preventing these participants from having validated XHTML websites.

However a workaround has been found by creating a new normal html site containing only the AdSense ad units and then importing it into the xhtml document with an object tag ^[8]. This workaround appears to be accepted by Google.^[9]

How AdSense works

• In order to put ads on a web page, the webmaster inserts JavaScript code into the page.
• Each time a page with an AdSense tag is visited, the JavaScript creates an iframe and sets its “src” attribute to the page’s URL.
• For contextual advertisements, Google’s servers use a cache of the page to determine a set of high-value keywords. If keywords have been cached already, ads are served for those keywords based on the AdWords bidding system. More details are described in the AdSense patent.
• For site-targeted ads, the advertiser chooses the page(s) to display ads on and pays based on CPM (cost-per-thousand-impressions, or the price advertisers choose to pay for every thousand ads displayed).^{[10] [11]}
• For referrals, Google adds money to the advertiser’s account when visitors either download the referred software or subscribe to the referred service.^[12]
• Search ads are added to the list of results after a user performs a search.
• Since the JavaScript is sent to the web browser when the page is requested, it is possible for other site owners to copy the JavaScript into their own web pages. To protect against this type of fraud, AdSense customers can specify the pages on which ads should be shown. AdSense then ignores clicks from pages other than those specified.

Abuse

Some webmasters create sites tailored to lure searchers from Google and other engines onto their AdSense site to make money from clicks. These “zombie” sites often contain nothing but a large amount of interconnected, automated content (e.g.: A directory with content from the Open Directory Project, or scraper sites relying on RSS feeds for content). Possibly the most popular form of such “AdSense farms” are splogs (“spam blogs”), which are centered around known high-paying keywords. Many of these sites use content from other web sites, such as Wikipedia, to attract visitors. These and related approaches are considered to be search engine spam and can be reported to Google.

MFA (Made For AdSense) is a site or page with little or no content, but filled with advertisements so users have no choice but to click on ads. Such pages were tolerated in the past, but due to complaints Google now disables such accounts.

There have also been reports of Trojans engineered to produce fake Google ads that are formatted to look like legitimate ones. The Trojan Horse apparently downloads itself onto an unsuspecting computer through a web page and then replaces the original ads with its own set of malicious ads.^[13]

Criticism

Due to concerns about click-fraud, Google AdSense has been criticized by some search engine optimization firms as a large source of what Google calls “invalid clicks” in which one company clicks on a rival’s search engine ads to drive up its costs.^[14] Some publishers that have been blocked by Google complain that little justification or transparency was provided. Webmasters who publish AdSense can receive a lifelong ban without justification.^{[citation needed]} Google claims they cannot “disclose any specific details” on fraudulent clicks since it may reveal the nature of their proprietary click-fraud monitoring system.^[15]

To help prevent click-fraud, AdSense publishers can choose from a number of click-tracking programs. These programs will display detailed information about the visitors who click on the AdSense advertisements. Publishers can use this to determine if they have been a victim of click-fraud or not. There are a number of commercial tracking scripts available for purchase.

The payment terms for webmasters have also been criticized.^[16] Google withholds payment until an account reaches US$100,^[17] but many small content providers require a long time – years in many cases – to build up this much AdSense revenue. These pending payments are recorded on Google’s balance sheet as “accrued revenue share”.^[18] At the close of its 2006 fiscal year, the sum of all these small debts amounted to a little over $370 million, cash that Google is able to invest but which effectively belongs to webmasters. However, Google will pay all earned revenue greater than $10 when the AdSense account is closed.

Google recently came under fire when the official Google AdSense Blog showcased the French video site Imineo.com. This site clearly violates Google’s AdSense Program Policies by displaying AdSense alongside explicit adult content.^[19] Typically, sites displaying AdSense have been banned from showing adult content.^{[citation needed]}

In addition, Google has been criticized for claiming that they created, or had a bigger part in creating, AdSense than they really did. Most recently, Gokul Rajaram claiming he was the “godfather” of AdSense caused some controversy.^[20] Another Google employee who took credit for AdSense was Susan Wojcicki.^[21]

1. ^ Om Malik. “How Google is that?“, Forbes, 1999-04-10. 
2. ^ Paula J. Hane. “Beyond Keyword Searching“, Info Today, 1999-12-20. 
3. ^ Sherman Fridman. “NetZero Acquires Simpli.com’s Marketing Technology“, Newsbytes PM, 2000-05-25. 
4. ^ “Google Buys Applied Semantics“, Incisive Interactive Marketing LLC, 2003-04-24. 
5. ^ “Google Acquires Applied Semantics“, Press release, 2003-04-23. 
6. ^ Shuman Ghosemajumder (2005-05-17). Official Google Blog: Feed me. Retrieved on 2007-12-29.
7. ^ Google AdSense Help Center: What is AdSense for feeds?.
8. ^ Stu Nicholls. Adding AdSense to application/xhtml+xml pages. Retrieved on 2008-02-02.
9. ^ Roger Johansson (2004-09-01). Content negotiation, AdSense, and comments. Retrieved on 2008-02-02.
10. ^ Google AdSense Help Center: What are CPM ads? (2007-12-29).
11. ^ Google AdWords: All About Site-Targeted Ads (2007-12-29).
12. ^ Google AdSense Help Center: What is the referrals feature? (2007-12-29).
13. ^ Benaifer Jah. “Trojan Horse program that targets Google AdSense ads“, TechShout, 2005-12-27. 
14. ^ Charles C. Mann. “How click fraud could swallow the internet“, Wired, January 2006. 
15. ^ Benjamin Cohen. “The nonsense about AdSense“, The Times, 2006-07-04. 
16. ^ Lem Bingley. “Google keeps on coining it in“, IT Week, 2007-02-01. 
17. ^ When do I get paid?. Google AdSense Help Center.
18. ^ Google Announces Fourth Quarter And Fiscal Year 2006 Results. Google Investor Relations (2007-01-31).
19. ^ Google AdSense Program Policies (2007-12-29).
20. ^ ValleyWag. “Another Googlers Takes Credit for AdSense=Valley Wag“, 2007-10-29. 
21. ^ ValleyWag. “Susan Wojcicki’s Big Lie=Valley Wag“, 2007-05-07. 

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