Once you have generated your ad code  by visiting the AdSense Setup tab and following the steps to choose the ad type, format and colours, you will need to add the code to your web pages. In the final step of the setup, your code will be displayed in the Your AdSense Code box. This is the code that you will cut and paste directly into your web pages.

Because every HTML editor is different and because only you know how you like to build your web pages, we cannot give exact instructions on copying the ad code into your pages. We can, however, give you a few tips:

• Make sure to paste the ad code into your source without making any changes to the code. This is important, as changing the code in any way can cause errors on your page (plus, it is against the AdSense programme policies)
• Copy the ad code between the body tags of your HTML
• If you are using a WYSIWYG editor (such as FrontPage or Dreamweaver), it is a good idea to paste the code into the Code or Source view. Pasting it into the layout view will often result in HTML tags being added to your code and will result in errors. You might also find it useful to review our Code Implementation Guide for tips on working with several different web editors.

• If your page uses frames, make sure that the code is pasted into the frame that contains your page's main content. We use this content to target ads

When you have finished, save your web pages and upload them to your server. If you have questions about uploading files to your server, we suggest contacting your web hosting company directly.

Google ads should immediately appear on your pages. Initially, the ads that you see may be Public Service Ads (known as PSAs) and will not be targeted to your page. We have to crawl your page's content before we know what types of ads to send your way. This can take up to a few hours, but usually occurs within minutes. Once our crawler has visited your page, you should see ads that are highly targeted to your content.