Nice article here
It is true that Internet has drastically grown in the past few years and has become more complex, but Search Engines are still on the verge of evolution. In order to make search engines more reliable information resource for users, Microsoft launched Bing in June, 2009.
Bing was launched under Beta tag in the UK. Microsoft at that time promised to remove the tag only under one condition i.e if its experience would be different from the competition and if the results would be outperforming in terms of UK relevancy.
The Bing team reached its objective on November 12, 2009 and the credit goes to London-based Search Technology Center. Microsoft says that 60 engineers behind the project in Soho have done extensive job at localizing the Bing global experience for the UK users in just 5 months.