Go to the Google Affiliate Network application.
Click No, I don't have an AdSense account.
Step 1: Applying for an AdSense Account
On the right, you'll see a blue box called "Getting Started".
Click the link, Sign up for a Google AdSense account.
Step 2: Check your inbox for an email regarding AdSense approval status
Step 3: Complete the Google Affiliate Network application process
Go back to the Google Affiliate Network application.
Click Yes, I have an AdSense account.
Enter your AdSense email and Publisher ID.
Click Submit & Continue.
Once you've completed the rest of the application, click, Submit.
After you've submitted your application
You'll receive an email confirmation.
Within 24 hours you will receive another email with the status of your application.
If your application is approved, you can apply to advertiser programs.
Advertisers may accept or decline partnerships at their discretion.