Abstract :
LAST NOVEMBER, UK Prime Minister David Cameron used a trip to London\´s \´Silicon Roundabout\´, a cluster of Web and media start-ups centred on the Old Street roundabout at the north eastern corner of London\´s financial district, to roll out his vision for the UK economy. He said: "We\´re not just going to back the big businesses of today, we\´re going to back the big businesses of tomorrow. We are firmly on the side of the high-growth, highly innovative companies of the future." The elegant Victorian warehouses in the streets around Silicon Roundabout are now home to more than 100 Web and technology start-ups, working on everything from online business-card printing (Moo.com) to streaming music services (Last.fm, whose founders became local heroes when they sold their business to CBS for ??140m).