The following are links to sites that are mostly or exclusively 1x2x1-centric.
Japanese Sites:
Blueberry Boy → Artwork by Hermit.
Sean-nos Cyberproject → Possibly the most well-known Japanese 1x2x1 art site, featuring the art of Yuuma Kamibata.
English Sites:
AJU Interactive → A Live Journal role playing game which pairs Heero with Duo.
Aenai Ai ~ Tragic Love → Aya's 1x2x1 site.
Akiko's Reality → This site features beautiful artwork by Akiko.
Amy Mizuno's Little Gundam Wing Page → Amy Mizuno's archive featuring 1x2x1 fanfiction and fanart.
The DHML → The archive of fanfiction by writers from the DHML (Yahoo group).
Duo and Heero for Eternity → Terra's site which is in both German and English.
Endless Orbit 999 → The gorgeous artwork of ASIA. (1x2 password=lemon)
FancyFigures.com → Clare's site has a very large section of her 1x2x1 fanfiction.
Flying Away → The 1x2x1 webring.
GWYAOI.Org → Recommendations for GW fanfiction focusing on 1x2x1 (and 3x4x3).
Haven: A Retreat For DuoxHeero Fans → The Gaia guild for fans of 1x2x1.
Laughing Jackal → Artwork by Duo Radon.
Lev's Lair → Lev's archive of fanfiction doujinshi and artwork. Mostly 1x2x1 content.
Precious Moments → Minky's site.
Prussian and Cobalt → One of GW fandom's oldest sites.
Reach for Me → The Heero/Duo fanlisting.
The Realm's Gateway -- AJ Maxwell's Fanfic Realm → AJ Maxwell's site.
Scathed Light → A small archive of select 1x2x1 fanfiction.
Self Destruction 101 → Dominique's 1x2x1 recommendations.
Shinigami & Wing → jana's 1x2x1 site.
softsugar → Melanie's site dedicated to Heero and Duo.
Soldier of Death → reen's shrine to 1x2x1.
Tenrai → An archive of the best of 2x1 fanfiction.
Under the Bridge → Link Worshiper's site for fanfiction and art.
The following are links to mailing lists that are exclusively 1x2x1-centric:
1x2ML → The biggest pairing-specific ML for the entire GW fandom.
1x2ML-Fic → The fiction-only mirror of the 1x2ML.
1x2x1ML → The 1x2x1 Mailing List. (This list is by invitation only.)
2x1domain → The 2x1 Domain.
DHLemonML → The Duo x Heero Lemon Mailing List.
DHML → The Duo x Heero Mailing List.
HDML → The Heero x Duo Mailing List.
The following are links to Live Journal communities that are exclusively 1x2x1-centric:
1_equals_2_fans → Focusing on the equality of the relationship between Heero and Duo.
1x2_fans → For fans of any combination of 1x2 and 2x1.
2x1_fansite → Specializing in 2x1.
The following are links to doujinshi sellers and buying services:
The Doujinshi Mailing List → A Yahoo Groups mailing list.
Japan Manga Bookmart → Features a large selection of Gundam Wing doujinshi.
Jpqueen Online Shop → Features doujinshi, artbooks and manga from a number of different anime series, including a section for Gundam Wing.
Mind Education: Kagenami Q's Gundam Wing Doujinshi Reference Digs → Has detailed information about the various doujinshi circles that produced Gundam Wing doujinshi.
Tuptoy → Features a small selection of 1x2x1 doujinshi, as well as doujinshi for other anime and a section for artbooks.
The links below are to the websites of people who have galleries of doujinshi scans:
dragynVille.com → dragyn's site has lots of 1x2x1 doujinshi available for download, in addition to bookmarks,
stationery, card sets and jigsaw puzzles for Gundam Wing and other yaoi anime.
Knights of the Yaoi Table → Features pages and pages of beautiful 1x2x1 doujinshi images.
Last Impression → Utako's site featuring translated doujinshi.
Moonlite Dreams Doujinshi → Host to doujinshi scans from several fandoms, including Gundam Wing.
