eBay has resumed advertising on Google AdWords, a little over a week after it stopped advertising on the site in an apparent retaliatory move over Google's planned protest party at the eBay annual seller's conference in Boston. Its return is muted, however: the company says the pullback proved it did not need to spend as much on Google ads as it once thought.

Google's party has since been cancelled, although it successfully brought attention to eBay's attempts to shut out other payment systems. The Mountain View, Calif. company is attempting to pressure eBay into permitting Google Checkout as a form of payment. The company claims a quarter of the top 500 online retailers use the service.