If you are shopping online and you are wondering whether to use Google Checkout vs PayPal, you should learn about the features of each checkout system. Both Google Checkout and PayPal are secure to use online, they allow you to make purchases without revealing your banking information. Neither require your to pay any fees for setting up an account. In order to figure out which method is best, it depends on where you are shopping and what your business and personal needs are.
Google Checkout can allow you do shop online without creating more accounts and passwords. If you have a gmail account, you can use that information for google checkout. Google checkout allows you to purchase items online as they are returned from your search (you don't have to go to the merchant's site). Many people find this convenient for shopping. If you are trying to send money or shop internationally, Paypal might be a better option for you, since google checkout is only accepted through merchants based in the United States.
In addition to using Paypal to shop online, you can use your PayPal account to send money to other people who have a Paypal account, by using their email address or phone number. You can also shop internationally with your PayPal account. You can also set up your PayPal account with your bank account or credit card so that if there are no funds in your PayPal, "backup" funds can be taken from the account of your chosing. Some people combine their Palpal account with a PayPal Mastercard. You can also use your Mastercard as a source of backup funding with Paypal.