The European Tour Operators Association is not looking forward to London hosting the Olympics in 2012. The association has just released a report which shows that Olympic host cities suffer a drop in tourism growth in the years surrounding the event.

Knowledge bank: EUROPEAN TOUR OPERATORS ASSOCIATON:OLYMPIC REPORT

Knowledge bank: On the opening day of Play the Game 2005, Kelli White, former World Champion in sprint, took the stand to explain why she had decided to use drugs to enhance her performance.

Knowledge bank: Jørgen Delman presents the history of China's modern development on its way from being a developing country to an economically strong nation in relation to the 2008 Beijing Olympics.

Knowledge bank: Lars Bernhard Jørgensen adresses the importance of the Olympic game and the reasons why cities like Copenhagen are so eager to host the games.

Knowledge bank: Huge sporting events are a break from every day life.
But they are expensive. Event organisers understimate the costs and exaggerate the revenues for the event and for the host country, says Harry Arne Solberg of the Trondheim School of Business.

Knowledge bank: Read about the Beijing 2008 Olympics and learn more about the current social conditions in China.

The Olympic Winter Games in Italy has become a focal point for appropriate means to fight doping in sport.