The Cost Of Free Doughnuts: 70 Years Of Regret : Planet Money : NPR: A lot of the online services you probably use are free. Gmail is free. Facebook is free. Yahoo News and NPR are free (though we certainly solicit contributions!). But increasingly, online companies are trying to figure out how to start charging, at least for some services, some of the time.
But today, we have a cautionary tale about charging for things that were once free. It's the story of how one small mistake moving away from free can cause trouble that's impossible to fix.
The story starts when Russ Roberts, a George Mason University economist, started hearing about how veterans don't like the Red Cross. That struck him as odd, and when he asked about it, he always got the same answer: the doughnuts.