I have a very simple question. I have a site with adsense & I am about to start another one... do I have to communicate this to Google or I just put in my adsense ID (the same from my first site) on the new site and that's it...
Best to search on the Adsense Help page. The answer is no. You don't have to do anything. You can simply include the code in the new site as long as it complies with their policies. You can see it officially here: https://www.google.com/adsense/supp...n:search&query=multiple+websites&topic=&type= -boxer126
Mate, there are people that open up 10 sites a day. Google just pick it up. When you add a channel url for the site, they will know automatically anyway.