Google AdSense is a program run by Google Inc. that allows publishers in the Google Network of content sites to serve automatic text, image, video, and rich media adverts that are targeted to site content and audience. These adverts are administered, sorted, and maintained by Google, and they can generate revenue on either a per-click or per-impression basis. Google beta-tested a cost-per-action service, but discontinued it in October 2008 in favor of a DoubleClick offering (also owned by Google).[2] In Q1 2011, Google earned US$2.43 billion ($9.71 billion annualized), or 28% of total revenue, through Google AdSense.[3]
Google uses its
Internet search technology to serve advertisements based on website content, the user's geographical location, and other factors. Those wanting to advertise with Google's targeted advertisement system may enroll through Google
AdWords. AdSense has become a popular company in creating and placing banner advertisements on a website, because the advertisements are less intrusive than most
banners, and the content of the advertisements is often relevant to the website.
Many websites use AdSense to monetize their content; it is the most popular advertising network. AdSense has been particularly important for delivering advertising revenue to small websites that do not have the resources for developing advertising sales programs and sales people to generate revenue with. To fill a website with advertisements that are relevant to the topics discussed, webmasters place a brief HTML code on the websites' pages. Websites that are content-rich have been very successful with this advertising program, as noted in a number of publisher case studies on the AdSense website. AdSense publishers may only place three ad units per page.
Some webmasters put significant effort into maximizing their own AdSense income. They do this in three ways:
[citation needed]- They use a wide range of traffic-generating techniques, including but not limited to online advertising.
- They build valuable content on their websites that attracts AdSense advertisements, which pay out the most when they are clicked.
- They use text content on their websites that encourages visitors to click on advertisements. Note that Google prohibits webmasters from using phrases like "Click on my AdSense ads" to increase click rates. The 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. AdSense commands an advertiser to submit a sealed bid (i.e., a bid not observable by competitors). Additionally, for any given click received, advertisers only pay one bid increment above the second-highest bid. Google currently shares 68% of revenue generated by AdSense with content network partners, and 51% of revenue generated by AdSense with AdSense for Search partners.
[4][edit]History
Oingo, Inc., a privately held company located in Los Angeles, was started in 1998 by
Gilad Elbaz and Adam Weissman. Oingo developed a proprietary search algorithm that was based on word meanings and built upon an underlying lexicon called
WordNet, which was developed over the previous 15 years by researchers at
Princeton University, led by
George Miller.
[5]In 2009, Google AdSense announced that it would now be offering new features, including the ability to "enable multiple networks to display ads".
[edit]AdSense for Feeds
In May 2005, Google announced a limited-participation
beta version of
AdSense for Feeds, a version of AdSense that runs on
RSS and
Atom feeds that have more than 100 active subscribers. According to the Official Google Blog, "advertisers have their ads placed in the most appropriate feed articles; publishers are paid for their original content; readers see relevant advertising—and in the long run, more quality feeds to choose from."
[8]AdSense for Feeds works by inserting images into a feed. When the image is displayed by a RSS reader or Web browser, Google writes the advertising content into the image that it returns. The advertisement content is chosen based on the content of the feed surrounding the image. When the user clicks the image, he or she is redirected to the advertiser's website in the same way as regular AdSense advertisements.
AdSense for Feeds remained in its beta state until August 15, 2008, when it became available to all AdSense users.
[edit]AdSense for search
A companion to the regular AdSense program,
AdSense for search, allows website owners to place Google Custom Search boxes on their websites. When a user searches the Internet or the website with the search box, Google shares 51% of the advertising revenue it makes from those searches with the website owner.
[4] However the publisher is paid only if the advertisements on the page are clicked; AdSense does not pay publishers for regular searches. Web publishers have reported that they also pay a range from $0.64 to $0.88 per click.
[edit]AdSense for mobile content
AdSense for mobile content allows publishers to generate earnings from their
mobile websites using targeted Google advertisements. Just like AdSense for content, Google matches advertisements to the content of a website — in this case, a mobile website. Instead of traditional JavaScript code, technologies such as PHP, ASP and others are used.
[edit]AdSense for domains
AdSense for domains allows advertisements to be placed on domain names that have not been developed. This offers domain name owners a way to monetize domain names that are otherwise dormant or not in use. AdSense for domains is currently being offered to all AdSense publishers, but it wasn't always available to all.
On December 12, 2008,
TechCrunch reported that AdSense for Domains is available for all US publishers.
[9]On February 22, 2012, Google announced that it was shutting down its Hosted AdSense for Domains program.
[10][edit]AdSense for video
AdSense for video allows publishers with video content to generate revenue using ad placements from Google's extensive
Advertising network including popular
YouTube videos.
[11][edit]How AdSense works
- The webmaster inserts the AdSense JavaScript code into a webpage.
- Each time this page is visited, the JavaScript code uses inlined JSON to display content fetched from Google's servers.
- 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, advertisements are served for those keywords based on the AdWords bidding system. (More details are described in the AdSense patent.)
- For site-targeted advertisements, the advertiser chooses the page(s) on which to display advertisements, and pays based on cost per mille (CPM), or the price advertisers choose to pay for every thousand advertisements displayed.[12][13]
- For referrals, Google adds money to the advertiser's account when visitors either download the referred software or subscribe to the referred service.[14] The referral program was retired in August 2008.[15]
- Search advertisements are added to the list of results after the visitor performs a search.
- Because the JavaScript is sent to the Web browser when the page is requested, it is possible for other website owners to copy the JavaScript code into their own webpages. To protect against this type of fraud, AdSense customers can specify the pages on which advertisements should be shown. AdSense then ignores clicks from pages other than those specified.
Some webmasters create websites tailored to lure searchers from Google and other engines onto their AdSense website to make money from clicks. Such websites often contain nothing but a large amount of interconnected, automated content (e.g., a directory with content from the
Open Directory Project, or
scraper websites 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 websites use content from other websites, such as
Wikipedia, to attract visitors. These and related approaches are considered to be search engine
spam and can be reported to Google.
[16]A
Made for AdSense (MFA) website or webpage has little or no content, but is filled with advertisements so that users have no choice but to click on advertisements. Such pages were tolerated in the past, but due to complaints, Google now disables such accounts.
There have also been reports of
Trojan horses engineered to produce counterfeit Google advertisements that are formatted looking like legitimate ones. The Trojan uploads itself onto an unsuspecting user's computer through a webpage and then replaces the original advertisements with its own set of malicious advertisements.
[17][edit]Criticism
There have been numerous complaints reported about the difference in treatment that a publisher is receiving from Asia against one from the US.
[18][not in citation given]Due to alleged 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 advertisements to drive up the other company's costs.
[19]To help prevent click fraud, AdSense publishers can choose from a number of click-tracking programs.
[citation needed] These programs display detailed information about the visitors who click on the AdSense advertisements. Publishers can use this to determine whether or not they have been a victim of click fraud. There are a number of commercial tracking scripts available for purchase.
[citation needed]The payment terms for webmasters have also been criticized.
[20] Google withholds payment until an account reaches US$100,
[21] but many micro content providers
[citation needed] require a long time—years in some cases—to build up this much AdSense revenue. However, Google will pay all earned revenue greater than US$10 when an AdSense account is closed and not disabled. On the other side Google bills its customers (API users for example) monthly, in increments as low as a few cents.
[citation needed]Many website owners complain that their AdSense accounts have been disabled just before they were supposed to receive their first paycheck from Google.
[citation needed] Google claims accounts have been disabled due to click fraud or forbidden content, but have offered no proof of this.
[citation needed] An automated email is sent to the publisher's owner which offers no reasoning, or options but a link to file an appeal.
[citation needed] In the email, Google states that "Because we have a responsibility to protect our AdWords advertisers from inflated costs due to invalid activity, we've found it necessary to disable your AdSense account. Your outstanding balance and Google's share of the revenue will both be fully refunded back to the affected advertisers."
[citation needed] The revenue generated - whether legitimate or not - is taken, and all complaints are deferred.
[22][not in citation given]Google came under fire when the official Google AdSense Blog showcased the French video website Imineo.com. This website violated Google's AdSense Program Policies by displaying AdSense alongside sexually explicit material. Typically, websites displaying AdSense have been banned from showing such content.
[23]It has been reported that using both AdSense and AdWords may cause a website to pay Google a commission when the website advertises itself.
[24]In some cases, AdSense displays inappropriate or offensive ads. For example, in a news story about a terrorist attack in
India, an advert was generated for a (presumably non-existent) educational qualification in terrorism.
[25]AdSense uses
tracking cookies that are viewed by some users as a threat to privacy.
[26] Webmasters that use AdSense must place the appropriate warning in the privacy policy page.
[27]
Google AdSense is an industry favorite for website monetization and has been for years. Almost daily at Infolinks, we receive questions and concerns about implementing Google AdSense and Infolinks on the same website. Does it break AdSense’s terms and conditions? Will you risk being banned by AdSense if you integrate Infolinks In-Text Ads on the same site? The answer to both of these questions is no.
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