How to Add Google AdSense to Joomla

Create a Google AdSense account
1. Navigate to the Google AdSense application page (see Resources). Enter your website URL, making sure that the address is the primary domain.
2. Choose a language. Agree to not run ads that include incentives to click them or pornographic content by clicking on the two corresponding check boxes. Select an account type, whether business or individual, and your country or territory.

3. Enter your name or your business name, which should match the name on the bank account you'll use. If using a business account, enter a contact name corresponding to the address you enter below it. Enter a telephone number.
4. Click four required check boxes: agreeing that the payee name you entered can receive checks, agreeing that you will not click your own AdSense ads, certifying that you've read the program policies and certifying that you do not already have an approved AdSense account. There is an optional box you can check to receive or limit periodic newsletters. Answer how you found out about AdSense from the drop-down menu.
5. Click 'Submit Information' at the bottom of the application and check the information you entered on the next page. Choose to use an existing Google account or create a new log-in and click 'Continue.' You'll have to wait one or two days while Google reviews your application.
Download and Install the Add-on
6. Choose an AdSense Add-on from Joomla's extension search (see Resources). As of August 2010, high-rated options compatible with Joomla 1.5 include 'Phoca Google AdSense Easy,' 'CB Adsense Plugin with Revenue Sharing,' 'GoogleAds plugin,' 'Adsense Inserter' and 'Google Adsense SiteSearch for Joomla 1.5.'
7. Download the add-on by clicking the link in the search list and clicking 'Download' on the resulting page. The download should start automatically. If it doesn't, click the link corresponding to the version of Joomla you're using, 1.0 or 1.5. Save the file.
8. Log on as an administrator to your Joomla site. Under 'Extensions' click 'Install/Uninstall.' In the box for 'Package File,' browse for the add-on you just downloaded. Click 'Upload File Install.'
9. Navigate 'Module Manager' or 'Plugin Manager' depending on the type of add-on you installed under the 'Extensions' drop-down menu. Open the new add-on.
Link the Add-on to Google
10. Log on to your Google AdSense account. Click the 'AdSense Setup' tab and click 'AdSense for Content.'
11. Click 'Single Page' and scroll down to the box titled 'Your AdSense code.' Look for the line that starts with 'google_ad_client =' and copy the string of numbers that follows, including 'pub-' but excluding the quotation marks.
12. Go back to your Joomla add-on and scroll down until you see the box for 'Publisher ID.' Paste the publisher ID you copied from your AdSense account.
13. Modify the add-on within Joomla. Depending on the type of add-on you downloaded, you can change the layout, placement, colors and text of the ads that will appear on your website.
14. Save the add-on. Load your website to make sure the changes you made are reflected where appropriate.