Dot hack sign by Artaniss on DeviantArt

hack//SIGN (TV Series 2002–2003) - IMDb

Hack/Sign - Rotten Tomatoes

.hack//SIGN - Vol. 1: Login [DVD]

YESASIA: .hack // Sign (Vol.4) (Taiwan Version) DVD - Japanese Animation, Power INternational Multmedia INC. - Anime in Chinese - Free Shipping - North America Site

hack//Sign - AAAPodcast

ANIME REVIEW: “.Hack//Sign: The Complete Series” – IndieWire

hack//SIGN - LezWatch.TV

Sora (.hack//sign) - Zerochan Anime Image Board

Tsukasa from .hack//sign

.hack//SIGN - The Complete Collection (Limited Edition) : Mitsuki Saiga, Megumi Toyoguchi, Kazuhiro Nakata, Akiko Hiramatsu, Kaori Nazuka, Isshin Chiba, Rie Tanaka, Hiroshi Yanaka, Mitsuyo Kondo, Brianne Siddall, Amanda Winn Lee