The giant online travel company, Expedia, will be floating its TripAdvisor division on the stock exchange. This is the most important travel opinion platform and is estimated to be worth between $3 and 4 billion. Income generated by TripAdvisor increased in 2010 and reached a sum of $486 million. The company exists in 29 countries, including China. The site is visited by more than 40 million visitors every month and 45 million opinions are given on the site. Google took over ITA, the price...