Still the world’s largest retailer, Wal-Mart has just announced good Q4 earnings, even though net income is down from $4.01 billion Q4 2007 to $3.79. However, sales were very strong in Q4. “Wal-Mart recorded the strongest sales result in its history in the fourth quarter, with 108 billion dollars in sales,” said Wal-Mart CEO Mike Duke. Net sales were up 1.7% from $106.20 billion YoY in the same period. For 2008, net income was up 5% to $13.4 billion, from $12.73 billion in 2007.