Since I opened my account with adsense, I added 5 more sites. I know you are allowed to add sites but should I ask adsense if those sites are OK to display ads?
No need. You can add as many sites with Adsense on it as you like. Just don't break the TOS and you will be perfectly fine. Col
no need. however, if one site is doing really well, make sure you don't violate TOS in a new site to protect the other sites. Remember, banning will affect everything on that account
As long as your sites are ok with adsense TOS and not in a gray area, you don't need to ask. However, if you believe that one of the sites may be in violation of adsense TOS, it is best to ask. If you haven't done it yet, you should read google adsense TOS to see which sites are acceptable.
I like to play it safe and ask unless I'm POSOTIVE that it complies with TOS. You never know what Google thinks
Once you are approved, the TOS clearly states no need to notify them. https://www.google.com/support/adsense/bin/answer.py?answer=9913&topic=134 Just reiterating.
Hmmm, should I be the 10th person to come here and say the same thing? Just think about how many emails Google would get if everyone notified them of new sites.