midnight trader: Only Midnight Trader provides real-time coverage and analysis of stocks trading overnight and likely to make big moves in the following regular session.
Investopedia: This was once reserved for institutional investors, but now individuals may also trade after hours. Participation by market makers and electronic communication networks (ECNs) is voluntary and, as a result, this kind of trading may offer less liquidity than that done during normal hours of trading. If you are trading in pre-market or after-hours trading, you should always use a limit order.
AfterHoursTrades.com: AfterHourTrades.Com Daily offers informative investor's information plus time sensitive commentary and analysis from some of Wall Street's most sought after internet sites.
CNNMoney: The Internet home of: FORTUNE, Money, Business 2.0, FORTUNE Small Business
Bull Investor: is a financial site that always keeps one step ahead of Wall Street. The Bull Investors network is a network of investment sites that meets all needs of investors by offering multiple sources real-time information, earnings information, market data and research tools.