During the heady days of the Internet bubble, she was boss of ICANN, the body which tried (as far as is possible) to regulate the Wild World of the Web.
When we caught up with Esther Dyson, there were lots of big issues to discuss. Should people pay a penny for every email they send? Should Sarah's suit have a price tag on it, so you can buy it straight off the television? Does it matter if people add moustaches to our video Interviews? And what on earth is Web 2.0 anyway? All these questions are answered.
Her pronouncements have always divided watchers. Some think she's on the ball, others disagree - but she's always controversial. Watch the (moustache-free) interview here.