Google Checkout is a new service that was released by Google and it is meant to allow customers to easily buy all sorts of things from stores located in the entire world.

The company is trying to improve the service very often because the customers are looking especially for security features that will allow them to do their transactions without any problem.

Today, Gavin Chan, Product Marketing Manager for Google Checkout, announced new features meant to make online shopping more easily and secure.

- Easy coupon creation: Create coupons from the Google Checkout Merchant Center. You can specify $-off discounts and %-off discounts, and add restrictions such as "one per customer," "new customers only," and so on.

- Email invoicing: Bill customers for purchases by sending them a Google Checkout invoice over email. The email will contain a link that your customers can click on to pay you via Google Checkout.

- Simple website integration: With the HTML API, integrating Google Checkout with your shopping cart is easier than ever. Simply add an HTML form to your website and use it to send us your shopping carts.

- More free processing: Earlier this month, we announced that we were processing all Google Checkout sales for free until the end of 2006. Since then, we've had such a positive response from merchants that we decided to extend the offer through the end of 2007. From now through December 31, 2007, we'll process all of your Checkout transactions for free.

The announcement comes after only one week since Google said more merchants will be added to Checkout to allow users to buy more products.