Here are some useful links for news websites.

The Wall Street JournalThe standard for business and financial news. Discount student subscriptions available
Financial TimesBritish daily that focuses on business and financial news. Subscription required
BloombergFinancial and economic news. No subscription required
Bloomberg Economic CalendarCalendar of major economic anouncements
Seeking Alpha Wall Street BreakfastOverview of the day's leading stories with links to articles with more information. Updates every business day in the morning
MarketWatchMarket-focused news
New York Times Deal BookNews and analysis that focuses on mergers and acquisitions