adding more sites

[3rd eye]

If you want to promote AdSense from more than one domain, how do you add more domains? Do you need to set up another account?

[robwatts]

No, you do not need to set up another account.

You simply add the code to the pages on where you would like to see them displayed.

Just make sure that any additional domains comply with their terms of service.

[3rd eye]

How are you able to check how each domain is performing individually?

[robwatts]

You can't.