Amazon's cloud is flying high, but profits disappoint overall

Profits from Amazon's cloud division jumped 69 percent last quarter, but the rest of its business fared less well.Amazon Web Services generated an operating profit of $687 million in the three months to Dec. 31, on sales of $2.4 billion, Amazon said Thursday. That was up from $240 million in profit and sales of $1.4 billion the year before.AmazonAmazon started breaking out its cloud numbers last year and it's proved to be the most profitable part of its business. Operating margins were 29 percen