https://www.reuters.com/article/us-amazon-com-australia/amazon-geoblocks-australia-from-u-s-site-as-tax-change-kicks-in-idUSKCN1IW0C5 >Amazon.com Inc said on Thursday it will force Australians to use its Australian website instead of its much larger U.S. site to avoid a new sales tax, setting the stage for a showdown with rival eBay Inc in the No. 12 economy.