Stunned...
Gobsmacked, even. And I'm not even drunk this Friday night.
So I checked the link from the second paragraph on the article, and no - the kid's website wasn't even hosted in the US.
So what frekkin right does the US have to try him? How can our judiciary in any way consider that there's a case to answer in the US for activity a UK citizen(*) carried out entirely outside the USA? When will we see the US extraditing it's citizens to the slew of countries that imprison people for hosting - just for example - porn?
Yes, I understand these are questions that aren't going to be answered from our government anytime soon, but it's an astoundingly bad precedent to set. Extradition treaty aside, and ignoring for now whether he broke UK law in hosting links - it's the thought that we'll send someone off to another country's legal system for acts anywhere on the 'net.
I remain stunned, and hoping a higher court slaps down this judge...</rant>
(*) an assumption based on the "never even left the North of England"