EBay is not accepting Google Checkout as a method of payment on its auction site.

The list of permitted payment services include Allpay.net, Bidpay, and, of course, PayPal, but Google Checkout is on the list of not permitted payment services.

An eBay spokesperson told Cnet.com that Google Checkout isn't accepted because it's a very new service.

He explained that eBay considers, "whether the payment service has a substantial historical track record".

"I won't say that's the only reason, but I will say that it is a factor in evaluating payment services."

"At this point we're saying it does not meet the factors needed to allow it as an accepted payment."

Google Checkout is a rival system to eBay's propriety payment service, PayPal.