The founder of StatCounter has been nominated for a BusinessWeek Young Entrepreneur award, and in my opinion he deserves a vote. Aodhan started the service when he was 16, and the way he developed the service, both technically and professionally, is quite honestly mind-boggling for someone that young chipping away on his own.
The service itself – a remote web stats application – has consistently been the best available, and his attitude to customer service and communications has impressed me since I first bumped into him on Boards.ie some time ago. You can read a note from Aodhan on the StatCounter blog. You can tell he didn’t actually write the post himself. :)