
"By integrating the checkout process with search and advertising, we're helping our users complete the cycle of searching, finding and buying," said Salar Kamangar, Vice President of Product Management at Google, about
Google Checkout, the online payment system launched today.
Easier for buyersHow to find products you can buy with Google Checkout?Google a product you want to buy and look for ads similar to this one:

Or visit your favorite store and look for this sign (or a
similar one):
Why should you use Google Checkout?You don't have to remember the username and password for each account you create to buy products. You just enter your Google Accounts credentials.
What credit cards does Checkout accept?Visa, MasterCard, American Express and Discover.
Do you have to be in the US to use it?The
TOS says you must be:
* 18 years old or older;
* capable of entering into a legally binding agreement; and
* a resident of the United States
What stores accept Google Checkout for now?
You can find a list of stores
here (link available only in the US): Timberland, Levi's, Starbucks Store, Buy.com and more.
More cost-effective for sellersHow much merchants have to pay to Google?If they are AdWords advertisers, for every $1 spent, they can process $10 in sales for free through Google Checkout. If advertisers exceed their free transaction processing for the month, they'll only be charged 2% plus $.20 per transaction.
If they don't advertise with AdWords, they'll pay 2% plus $.20 per transaction.
How difficult is to integrate Google Checkout into a site?You can use a simple "Buy Now" button if you don't need a shopping cart or you can try
Google Checkout API to integrate Google Checkout into your shopping cart.
Does Google Checkout allows customers' feedback?After receiving a product, buyers can rate it from one star to five stars and make comments to describe the transaction, purchasing and delivery process.
I don't have a site. Can I sell products using Google Checkout?You can
sell your products on Google Base. It's really easy to use and your products can come up on top of the search results (in Google OneBox results).
Google Checkout is not a PayPal competitor, it's just the perfect complement for AdWords. Advertisers can now outsource transaction processing, pay for sells instead of clicks and give more information about shopping preferences to Google.
Related:
Google Checkout ScreenshotsMore answered questions.Can anyone from the US confirm the system actually works?