There is a good news for new users of PPC ads account. Number of PPC engines including MSN adCenter are giving coupons at a conference, eComXpo. MSN adCenter is giving coupons worth $50 to its new users. All you have to do is go to Microsoft adCenter and open a new account by 15th November. Just enter promotional code: ecomxpo1006 and avail the offer of $50 credit for ad clicks.