If you have a Yahoo, Amazon or Ebay Store, Google has made it easier to get your products listed in Google base. The Google Base Store Connector is a tool that allows merchants to export their products from those three sources and initiate a bulk upload to Google Base. The listings will shows products and link directly to eBay listings, or your Yahoo or Amazon store. Once the software is download and account information is entered, merchants can move and synchronize multiple sites easily.  Learn more about the Google Base Store Connector.