When I signed up with AdSense I had to give details of my website. I have a few other sites and might want to add ads to those too. How do I do this? Just add the ads, or do I need to set up each new site as a validated site?
Yes you can put the adsense code on the other sites to. And check to ad a channel so you can see where the money is coming from.
you can put adsense on as many sites taht you own. just make sure all of them are within TOS. and as farkas said, use channels to track money.
I'm not sure that all my sites are OK, at least two are definite no-nos (one is an affiliate site and another is restricted to family and friends). I am waiting a while until I am confident about the details of the ToS before I extend too much.