Dow at 40,000: Why stocks still have ‘plenty of room to run’ Yahoo FinanceHere’s what has driven the Dow rally to 40,000, and why it could keep going CNBCGoldman Sachs, Microsoft Power Dow Industrials to 40000 The Wall Street JournalWhat’s behind the historic stock market highs and how it relates to the overall economy PBS NewsHourDow closes above 40,000 for first time ever CNN