Mobile Biz Stone Co-founder, Twitter

As we increasingly realise the web as a vital social utility and important marketplace we cannot ignore an even bigger potential. The power of the internet is not limited to the PC. Twitter has emerged to create a seamless layer of social connectivity across SMS, IM, and the web. Operating on the simple concept of status, Twitter asks one question: "What are you doing?" Friends, family and colleagues stay connected through short responses.

The potential for this simple form of hybrid communication technology is strong. For example, a person in India may text "Follow Biz" and get online via Twitter over SMS in a matter of seconds. Biz might be updating from the US on a PC. Nevertheless, the updates are exchanged instantly.

Our future holds in store the promise of increased connectivity to a powerful social internet which truly extends to every little spot on our Planet Earth. We're all affected by and defined by each other's actions. What are you doing?