Cefconnect Closed end fund screener.
CXO advisory: a website proposing independent research.
ClearStation: Technical analysis with charts.
ETF db: One of the biggest ETF database with free ETF screener.
Investing in bonds is good website on bond investing.
Index Universe is an independent website on ETFs and index funds.
Investorside Research Association is a non-profit trade association of independent investment research providers.
MSCI offers indexes and research (you can consult some indexes for free).
Stockcharts.com: Technical analysis with charts.
U.S Company filings The U.S Securities and Exchange Commission website.
Seeking Alpha is a website providing free stock research from money manager and investment newsletter writer.
Stockpickr proposes ideas for your stock picks.
Value Investors Club is a fundamental investment club created by John Greenblatt. The club is limited to 250 stock-pickers with the best ideas. But a free trial is available for 45 days.
Value line provides independent fundamental research on stocks, funds, options andconvertibles.
Zacks Investment Research Fundamental investment research.