Can someone tell me if it is ok to put your adsense on other sites that you run. Do you have to get google permission to do that?
You can use your adsense ads on any site you run (not just the site you applied with) so long as they don't violate google's TOS. Just add the code and google will find them and credit you with the money for valid clicks.
In fact, you must use the same account for all your site. You can't create different account for different sites, it's in the TOS.
And it's easy to add your other websites to your statistics by "managing channels" under the advanced reports. You can your websites to the list and Google will report the impressions and the clicks.
Make as many accounts as possible with Google. Put similar websites in the same account. It helps in a long run.
Make sure you don't reapply again for another website using the same name for the current adsense account.
Is that really possible, same person applying for another account? I thought no. Anyways, just one account is enough, channels are there for tracking!