what is google adsense
Because the Google AdSense ads relate to what your visitors came to your site to read about, or because the ads match up to the interests and characteristics of the kind of people your content attracts, you now have a way to improve your content pages AND make some serious bucks off of them.
Google AdSense is also a way for site owners to provide Google search capability to visitors and to earn even more money by putting Google ads on the search results pages. Google AdSense gives you the ability to earn advertising revenue every single page on your website—with a minimal investment of your time.
from So what kind of ads do you have to put up? That’s the good part—you don’t have to decide. Google does it for you. AdSense always delivers relevant ads that are precisely targeted—on a page-by-page basis—to the content that people find on your site. For example, if you have a page that tells the story of your pet fish, Google will send you ads for that site that are for pet stores, fish food, fish bowls, aquariums…you get the picture.
If you decide you want to add a Google search box to your site, then AdSense will deliver relevant ads targeted to the Google search results pages that your visitors’ search request generated.
If you’re into upgrades, Google is now offering “AdSense Premium”, which is CPC based and, for the time being, offers less flexibility in terms of ad sizes -- only banners and skyscrapers are currently available. You can apply using existing AdWords accounts, or you can request a new account. Applicants are usually notified within a day as to whether they’ve been accepted for the program.
Here’s the thing you need to know: Google has no strict criteria for acceptance into the AdSense program, and Ad Sense doesn’t hit you with a minimum traffic requirement. The only criteria they’re really sticky about is the standard “acceptable content” requirements, and that’s pretty standard almost anywhere.
Google AdSense says they’re serious about attracting quality content sites, and because of that they only allow AdSense members to serve one ad per page. This means you can’t use AdSense for both banners and skyscrapers.(Note: banners are those horizontal ads that run up top and down bottom. Skyscrapers are the tall ads that run vertically, on the left and right of your page text.)
Once you’ve been accepted into Google AdSense, you’ll be able to get the AdSense advertisements on any site you own using the same ad code, provided you obey the Google guidelines. (And that’s very, very important—more on that later.)