Amazon reported first quarter sales on Thursday afternoon following the close of the market, with net income of $513 million (or $1.07 per share) that was almost double what analysts were expecting. The company’s shares are up close to 10 percent in early Friday trading as a result. Net sales rose 28 percent to $29.13 billion, also well ahead of projections. As in previous quarters, the real source of the profits is the fast-growing AWS web services business, where operating income was $604 million. North American media sales of $3.21 billion were up 8 percent (gaining $239 million) and international media […]