Hey, I have seen lots of adwords vouchers distributed either for free or at a very low cost.. so , whats the catch in using them coz else anyone can use lots of vouchers to garner nice traffic to their site for a low cost..
yeah i mean adwords.. well in that case, wouldnt people create multiple accounts and use the benefit?
opening 1-2 account is ok, but if someone is doing too much then google team may find you one day and ban/close all accounts