How to get free adwords promotion coupons (vouchers) 2012

The best way to try adwords advertising program is to use a voucher, but remember adwords coupons can be used only once. I will give you a list of website where you can request a free adwords coupon from google. Once you did, wait from 3 to 7 days, and check your email for voucher.
Do not request a coupon second time, because google will not send you another voucher, don’t try to fill in another domain, or your name, google tracks you other ways.
Please read Terms and Conditions apply for online advertising promotional credits
The list of website where you can request a free promotional coupon (choose only one link to request the coupon, do not repeat requests on other links, and do it once):
$75 adwords coupon – https://services.google.com/fb/forms/adwordscoupon/
AU$75 adwords coupon – https://www.google.com/appserve/fb/forms/auonline/
$100 adwords coupon – http://www.google.com/ads/offers/hiregoogleadwords.html
$100 adwords coupon – http://www.google.com/ads/offers/adwordsoffer.html
£30 adwords coupon – http://www.google.co.uk/intl/en/ads/offers/specialoffer.html
£75 adwords coupon – http://www.google.co.uk/intl/en/ads/offers/get75.html