Many website publishers choose to monetize their sites by placing advertising on the Web pages. One of the most popular advertising venues is Google AdSense. If you no longer wish to use AdSense because the ads are not beneficial to the site's overall success or you wish to use advertising from another provider, you can remove the AdSense ads at any time. Each AdSense unit must be manually removed. Removing ads may be a little tricky because the AdSense code can blend in with the rest of the website's code.
Instructions:
1) Open the Web page in a Web page editor or text editor such as Dreamweaver, WordPad or Notepad.
2) Select to view the website code, if using a Web page editor. (A text editor will already have the code displayed.) Look for the AdSense code within the Web page code. The code will be between the HTML body tags.
3) Use the mouse to highlight the entire AdSense code. Place the cursor at the beginning of the code and highlight the code in its entirety.
4) Right-click on the highlighted code and select "Cut or Delete" from the drop-down menu. The code will be removed from the Web page.
5) Save the new configurations to the Web page. Select "File" and "Save or Save as" in the Web page or text editor.
Source - eHow
