Pinboard (ferretsrule) https://pinboard.in/u:ferretsrule/public/ recent bookmarks from ferretsrule Opportunity costs: True fact of the day | The Economist 2010-04-26T23:56:55+00:00 http://www.economist.com/blogs/freeexchange/2010/04/opportunity_costs ferretsrule amazing apple shares money ipod https://twitter.com/ https://pinboard.in/u:ferretsrule/b:585c169278ce/