Index Funds

• Index Universe - The World of Indexing...and Beyond

  Covers product and market developments related to index funds,
  exchange-traded funds (ETFs), index derivatives (futures/options/swaps),
  and the sophisticated investment strategies which use these financial tools.
  Tools and data to assess markets and investment products, and specialized
  discussion boards.

• Smart Mutual Fund Investing for Canadian Investors

  This is the single best site on the Net for information on index investing.
  Although in says "for Canadian Investors", it has grown to include an
  international outlook.