Google AdSense is the program that can give you advertising revenue from each page on your website—with a minimal investment in time and no additional resources. AdSense delivers relevant text and image ads that are precisely targeted to your site and your site content. And when you add a Google search box to your site, AdSense delivers relevant text ads that are targeted to the Google search results pages generated by your visitors’ search request. Google AdSense matches ads to your site's content and audience, and depending on the type of ad, you can earn money from clicks or impressions. AdSense for content automatically crawls the content of your pages and delivers text and image ads that are relevant to your audience and your site content. What makes this more interesting is that advertisers don't pay to have their adverts show up on

either Google or separate content sites, but instead pay when the ads are clicked by customers, what we call "pay per click" or PPC. A percentage of the amount that the company pays Google for displaying the ad is then shared with the AdSense-enabled web site owner. Adsense for search takes two variations in itself, you can place a search box on a page that either redirects to the Google country specific search engine of your choice or it can redirect to a bespoke results page on your own site showing Googles results. These results pages will have advertisers on them also. Each type of integration use a piece of script (currently javascript, no php yet) that you place in the location you want to show the ads/results. You make money whenever a user clicks on one of these adverts.

The website maintenance related to Adsense is very easy and requires very little effort. Webmasters need only to insert a Google generated javascript into the web page or website template. Google's spider parses the advertising website and serves ads that relate to the website's content. Google uses a combination of keyword matching and context analysis to determine what ads should be served. The java script calls the ad from Google and will ensure that ads are served each time a visitor goes to the web page. Early on Google implemented a filtering system that allowed webmasters to prevent a specific domain's ads from being served on any websites in their account. Ad blocking meant that webmasters could prevent their competitors ads from being dynamically served on their websites.
The relevancy of ads placed by AdSense varies on all sorts of criteria, but most ads are usually very relevant to the page on which the ad is displayed. For example, the ads on this page should be related to the internet, advertising, and/or the Google AdSense program itself. Advertisers pay Google a certain amount for each time one of their ads are clicked. Google keeps a portion of this payment and passes on the rest to the owner of the website itself. Page views of the advertisements are irrelevant in terms of generating revenue in the program - commissions are only generated when internet users actually click on the ads themselves.
Google AdSense checks are sent out on a monthly basis. Many webmasters wait in anticipation of their checks since AdSense provides them a simple way to recoup some of the losses associated with posting websites on the internet. In some cases, webmasters can even make a profit using Google AdSense.
Some Tips and Tricks To Boost Your Commission

You should take care when placing your AdSense ads. If you read through Google help on AdSense, you will find many tested Google AdSense tricks one of which is the heat maps suggesting the best locations for your adverts. It is a proven fact that, one place the visitors look first on the site is the top left position. Since this is the place that will have the visitor's attention, it definitely helps to place your AdSense ads there.
Another great Google AdSense trick is to place the ads on high traffic pages. You will be able to discover the pages with the most traffic on your site by looking at the logs or even your Google Analytics account, which gives you a page by page report of visitors that come and go from your site.
Whatever topic your site deals with, you should take care to build pages around this specific topic and include your keywords in the content as many times as possible without it becoming redundant. This is perhaps the best Google AdSense trick to assure that the ads placed on your page, are relevant and useful to the visitors on your site.
Yet another important Google AdSense trick that is often ignored by most webmasters is the AdSense preview tool. Google provides an excellent tool to help you preview the ads that appear on your page. This tool allows you to see the sample ads and formats, preview colors on your page, check the destination of the ads and even see how people in other countries will see your ads.
Color code your ads to match your web site palette *exactly*. Don't use frames around your ads. Instead, in the AdSense code generation interface, make sure you choose the same color as your page background for the ad frame and the ad background.
Try not to use the traditional horizontal banner style or leaderboard image ads because people are blind to them. Use Google's new 4 and 5 link ad units wherever possible. They seem to have a much higher Click Through Rate (CTR) than regular ad styles.
Place arrows or images next to your ads to draw attention to them. Use the full allowance of multiple AdSense ads on each of your pages - 3 regular AdSense ads, plus 1 link unit. Use careful placement of these ads so they blend into your site and don't distract from your content.
Use custom Ad Channels for each of your ad placements, for example, "Top 5 Link Unit Blue Palette" or "Left Side Navigation Image Skyscraper" etc. Tweak, track and measure the success of each of these custom channels so you know what gives you the highest CTR.