CORPORATE FINANCE
  Damodaran Online really?
 - Homepage of Aswath Damodaran, professor of Stern School of NYU.
   This site includes A LOT of research, lecture notes of corporate finance,
   investments, and valuation.

INVESTMENT
  Campbell R. Harvey
  - This site includes MUST references for MBA students with finance
    concentration, such as option pricer, valuation tools, and huge finance glossaries.
    This page is rated the #3 Business-Economics page by Lycos.

DERIVATIVES