I can't be the first one here to have had this happen One of my sites stopped showing ad units (but still shows link units) a few days ago. No notification from Google or anything. Weird thing is, I have custom channels set up, and it still says a few of my "imaginary blank ads" are getting a few clicks. I had a few friends check, and they see no ads either (aside from link units). So my account has not been banned...seems like it's just this site. Is there anything I can do at this point?