PYMNTS.comAmazon Talks Margins And (Grocery) MarketsPYMNTS.comWhen one gets on a hot streak like the one Amazon has been on for the last several weeks, it can be hard to remember baseball great Connie Mack's sage advice: You can't win them all. Because no matter how big, smart or powerful a merchant happens to ...Amazon Plows Ahead With High Sales and Spending; Profit PlungesNew York TimesAmazon Posts $38B Net Sales But Misses Estimates In Q2 2017Android HeadlinesIndia contributes to Amazon's 77% profit plunge: Why company will still continue to invest hereFirstpostBusiness Insider -CNBC -24/7 Wall St.