Other amount <a href=" http://www.mediarakkers.nl/index.php/what-is-esomeprazole-tablets-ip-40-mg-for.pdf ">alternative for nexium</a> The company's operating margin was just 0.5 percent, as its operating expenses jumped 23 percent. Amazon has been spending heavily to expand internationally and beef up its Web services business. Spending on technology and new content jumped 46 percent from a year earlier. It posted an operating margin of 1.1 percent in the first quarter.