10 x Google AdWords Vouchers (Up To £150 Free)
Valid for UK and Ireland businesses as far as I know. Sent to me February 2014. See http://www.google.co.uk/intl/en/adwords/coupons/terms.html for terms and conditions.
And if the ones below no longer work, have a look at our PPC Vouchers page to see if there are any other current coupon offers you can avail of.