Google Checkout, the internet giant's online payment processing system, is unveiled in the UK for the first time today. By a unfortunate twist of fate the launch clashed with major problems with the VISA payment system, meaning some Checkout transactions were disrupted. Checkout is basically the merchant parts of PayPal under the Google banner, although they would hate to admit to that! According to Google merchants can sell with complete confidence because they proactively identify and filter out fraudulent transactions. How reassuring. Until 2008 every AdWords advertiser who spends £1 on ads will receive £10 of payment processing free of charge. Check the Google Blog and Checkout site for more information.