Roberta Gianfortoni, a dean at the Harvard School of Public Health, has visited Cuba to tour its medical system and says doctors there know how to do many procedures but that doesn't mean those procedures are actually available.

FORBES: Sicko's Shortcuts

Look for the tour to tweak the Cup system in future years to further boost appeal for both fans and players.

FORBES: Kurt Badenhausen On The Business Of Sports

Taxes in America is a clear, concise, and easy-to-read tour of the U.S. revenue system.

FORBES: What To Read While Hanging Out At The Fiscal Cliff

The art plays a crucial role in the value system of the Companions of the Tour de France, for example.

UNESCO: Intangible Cultural Heritage

The reasons why the Tour is unlikely to change its current pace-of-play system anytime soon are many and interconnected, but here's a good one to start with: meaningfully speeding up play would, in effect, penalize the Tour's slowest members where it hurts them the most, in their wallets.

WSJ: John Paul Newport on Slow Play | Golf Journal

He was dropped from the squad for March's tour to India as a result of South Africa's racial quota system, and played for Essex and the Mumbai Indians in the interim.

BBC: Cricket's craziest man

It was announced that one of his drug tests during the tour indicated he may have had a higher-than-legal levels of testosterone in his system.

NPR: Landis Doping Allegations Give Cycling Black Eye

Much of that has to do with the strange economic incentive system in the music business--acts keep most of the money made on tour, while record labels keep most of any money made from record music sales.

FORBES: Music's Top Moneymakers 2006

In tests last year at Yankee Stadium and Citi Field, MLB experimented with the Hawk-Eye animation system that is used to judge line calls in tennis and the TrackMan radar software used by the PGA Tour.

WSJ: MLB hoping for large replay expansion in 2014