In various areas Google AdWords is running a campaign to get more people to try Google AdWords. In Europe there is a campaign for new users to get 75£/40€/75€ credits for free after a small amount on the new account has been spent. It can't be Googled so I thought I'd be of help and share the links.
Insert your e-mail to get the coupon etc, all written there.
United Kingdom 75£ http://www.google.co.uk/adwords/coupons/
Estonia 40€ http://www.google.ee/adwords/coupons/
Finland 75€ http://www.google.fi/adwords/coupons/
Sweden 750SEK http://www.google.se/adwords/coupons/
Norway 750NOK http://www.google.no/adwords/coupons/
Latvia 40€ http://www.google.lv/adwords/coupons/
Lithuania 150LT http://www.google.lt/adwords/coupons/
Poland 200ZL http://www.google.pl/adwords/coupons/
Germany 75€ http://www.google.de/adwords/coupons/
Russia 1000RUB http://www.google.ru/adwords/coupons/
Italy 75€ http://www.google.it/adwords/coupons/
Spain 75€ http://www.google.es/adwords/coupons/
France 75€ http://www.google.fr/adwords/coupons/
Greece 75€ http://www.google.gr/adwords/coupons/
Romania 200RON http://www.google.ro/adwords/coupons/
etc...
To see if in your country you have this campaign, just enterwww.google.yourcountrycode/adwords/coupons/ and see if there is a page under it.
