Hmm, well it's a shame the website is blocked, most likely due to keywords used perhaps. If you suspect it's the keywords, try googling intern0t and find a thread on the forums that isn't directly about hacking (or just make google filter words away like hack, hacker, hacking), as the keywords and description in the meta tags are dynamic.
At one of my former jobs, the site wasn't blocked for over a year or almost 1½, and then it suddenly got blocked. (Blacklisted) I don't think it's blocked domain wise as intern0t.org was just recently registered during December 2011 because of 1and1 not releasing the domain. (They still haven't, and I'm not taking the chance of losing the domain name, meaning the traffic is slowly but fast building it's way from intern0t.net to intern0t.org, making the domain able to survive