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Arab entrepreneurs pitch 'Silicon Wadi' ideas

Silicon Valley in California is still the world's centre of technological innovation, with a culture of risk-taking billionaires betting on the next big thing.

The Middle East and North Africa is not a region known for its high-tech entrepreneurs, but one spin-off from the Arab Spring is an explosion of online social networking and use of smartphones.

Alastair Leithead joined a group of the Middle East's brightest young entrepreneurs on a tour of Silicon Valley - to announce their arrival in the market, search for investors and work on the perfect business pitch.

Living Online is a series of video features published every Tuesday on the BBC News website which look at how technology converges with culture and all aspects of our daily lives.

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