The Canadian Couch Potato defending passive investing. Especially relevant in a turbulent market .

The following blog link does a good job of defending passive investing - especially during these volatile times.
Remember passive investing is about building a portfolio that meets your risk tolerances and time horizons and then uses index funds as the investments in the portfolio. And, very importantly, staying with the plan unless time horizons or risk tolerances change.

http://canadiancouchpotato.com/2011/08/02/why-passive-investors-arent-really-lazy/