ShopSite supports the new Google Wallet. ShopSite's shopping cart can link to Google Wallet to let shoppers pay for purchases. This means that merchants can accept credit card payments without having to obtain a merchant account. In addition, merchants that use Google AdWords will have an icon on their ad to indicate they accept Google Wallet thus driving more shoppers to their store.
ShopSite Help - Google Wallet
General Overview of Google With ShopSite