You may have noticed that we’ve removed Google Checkout from our checkout options (for now). Quite frankly, it was confusing some customers, because it seemed to be presented as the only option for checking out when you looked at your shopping cart in the sidebar. You could still select either PayPal (our preferred method of payment) or Google Checkout from the checkout page, but many people were clicking on the big Google Checkout button in the sidebar, thinking that was their only option.
We will reactivate Google Checkout in the near future, when we sift through our web site code and figure out how to provide the service more organically, with less confusion to our customers. In the meantime, we hope PayPal will suffice.