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.
Original Note from http://www.oreillynet.com/pub/a/network/2005/07/26/WhatIsAdSense.html
AdSense is a great program, though Google has given it a confusing name. If they'd called it AdSpace, you'd know right away what it's about: selling advertising space on your website. Despite the nomenclature issue, AdSense (www.google.com/adsense) has become popular with bloggers and other people who run noncommercial sites. You sign up, carve out some space on your pages for the ads (Figure 1), paste a few lines of code from Google into the HTML for your site, and let Google fill in your pages with color-coordinated ads. When somebody clicks one of the ads, Google pays you a fee (the amount varies, and the company doesn't disclose its payments).
Note: AdSense can be tricky for e-commerce sites because you can't fully control which ads appear on your site, and you wouldn't want to run ads for your competitors' merchandise right next to your own displays. You can, however, filter out some ads. Original post from Facts About AdSense - AdSense Secrets
AdSense is Google's program for placing its AdWords ads on non-Google websites such as this one.
AdSense lets website owners like you and me make money easily and fast without even selling anything. In fact you can often start earning in under 24 hours and when you get paid, it is Google that sends you a check!
You don't have to run a large site or have much traffic to make money and AdSense works for small enthusiast or hobby sites as well as larger operations.
AdSense is easy - but here's how to make real money
Some websites make a lot of money from AdSense (thousands of dollars a month!) whilst others make very little and there are many complex reasons why earnings differ.
I've been using AdSense since it was launched and am hugely enthusiastic about it. I've written a 5-day course about AdSense that explains
- where the money comes from
- what you have to do to start out fast
- how much money you can make
- what clicks are worth
- how to put a rocket-engine behind your earnings
- whether you can cheat
- how to build a site for AdSense fast and easily
- how to get going without spending any money
