Google will be spending some time in court (or at least writing checks to their lawyers) soon, defending itself against lawsuits for fraud stemming from its parked domains program. My experience with Adsense for domains (or any advertising campaign on parked domains) is really suited for those with massive budgets that use the opportunity to secure brand recognition and mind share as opposed to generating a return on advertising spend through sales or leads.
 
 If you're not looking to advertise directly on parked domains, consider opting out of the Adsense for Domains program by using the Site and Category Exclusion tool.  To exclude parked domain sites:
 
 1. Sign in to your AdWords account at https://adwords.google.com.
 2. Make sure the Campaign Management tab is selected.
 3. In the shaded area beneath the tab, click Tools.
 4. Select Site and Category Exclusion.
 5. Choose the campaign whose exclusions you'd like to edit from the Campaign drop-down menu.
 6. Select the Page Types tab.
 7. Check Parked domains.
 8. Click Save all exclusions