Matt Biddulph (Dopplr)

Matt Biddulph is the nomadic CTO of Dopplr, the social network for intelligent travellers. He started out in 1994 building search engines on CD-ROM, and now specialises in digital media, social software and putting data on the web. In past lives he was a creative technologist for hire, working with companies like Nature, Joost and the BBC to bring cutting-edge technologies into the mainstream.