godsibb
Xeno fan forum

xeno underground
information, media, and forums covering the entire Xeno series

liberation
fan shrine for Ziggy

sora ya
official website of Soraya Saga

diapazon
Japanese-language site about Pied Piper (Xenosaga cell phone game released in Japan)

xenochat
fan podcast (Spotify)

xenosaga wiki
fan edited wiki covering Xenosaga and Xenogears

mori no meikyuu
Japanese-language blog with Xeno-series and other fanart

jibunkaidou
Japanese-language fanart page

mira
Xeno meta-series translations

official design materials
Episode I ODM translation

zarathustra
Pied Piper script translation (alternate mirror)

perfect guide
Episode III Perfect Guide translation