Twitter was featured on the BBC’s Newsnight programme last night. There weren’t any great revelations about the service, however the confirmation from the CEO that London remains the top Twitter-using city in the world is pretty interesting. This was indicated last year, but it is surprising that, a year on, London has retained this top slot, which just goes to show how popular it is in the UK overall.

Prior to a pre-recorded interview with Ev Williams, CEO and co-founder of Twitter, they ran a report in which the editor of Wired UK said he didn’t know what the business model of Twitter was. He obviously hasn’t been reading TechCrunch.