Get free transaction processing when you use Google AdWords

When you use Google Checkout to process your sales, you'll only be charged a low 2% + $0.20 per transaction. If you advertise with Google AdWords, you will also be eligible for free credit card processing for some or all of your Google Checkout sales. And there are no monthly, setup or gateway fees.

Sales Through Google Checkout Transaction Fees
Sales of up to 10 times your monthly AdWords spend FREE
in excess of 10 times your monthly AdWords spend 2% + $0.20 per transaction