Amazon reported second quarter results after the close of the market Thursday afternoon. Total sales grew 20 percent to $23.18 billion, while operating income was $464 million (compared to a loss of $15 million a year ago) and net profits were $92 million (compared to last year’s net loss of $126 million). Amazon’s stock has spiked as a result, up over 16 percent to around $560 a share Friday morning, an all-time high. A big chunk of that profit looks to be attributable to the fast-growing, high-margin AWS cloud services business rather than their retail operations. AWS operating income this quarter was $391 million, […]