- Fan Websites: dothackers.net - Formerly the most well known .hack fansite out there! Not terribly informative, but they were quick with news, nowadays the owner hosts a nice japan focused site. The message boards live on however!
.hack//Wiki - The name says it all! This place is also by kulaguy. Feel free to contribute to it! I know I have!
.hack//Translate - Kazetrigger's fanslation site which contains and links to various .hack related works he's translating / helping to translate!
Dothack Network - A site with the goal of truly archiving just about everything .hack on the web, past and future! Helping hands wanted!