Porcupine Tree:Official site with news, concert listing, discography, biography, music samples, and multimedia.
Burning Shed: The band's own web store, often offering items unavailable elsewhere.
Carbon Nation: Independent Porcupine Tree magazine, featuring in-depth interviews with band members, reviews and news.
Chemical Harvest: French-language fan site, notable for a comprehensive archive of concert setlists (in English).
Complete SW Discography: Regularly updated, featuring every known release to which Steven Wilson has contributed, with cover scans, track listings and notes.
Deadwing: Promo site for the 2005 album, 'Deadwing', featuring excerpts, outtakes and supplementary material.
Fadeaway: Greek site (in Greek and English) dedicated to the band and SW. Includes guitar tabs, lyrics, discography, news, audio samples and live photos.
Porcupine Tree: Reviews of 7 albums.
Porcupine Tree at MySpace: The band's official MySpace presence, providing news and exclusive content.
Porcupine Tree Forum: Active, threaded forum devoted to discussion of Porcupine Tree, associated projects and other topics of interest to P-Tree fans. Replaces the forum once at the official site.
Porcupine Tree is Climbing Higher: Articles from Pause and Play.
PT-Trans: Home page of the discussion group, including sign-up details and archived postings.
Silver Pills: Comprehensive compendium of available Porcupine Tree live recordings, enjoying semi-official status.
Steven Wilson at MySpace: SW's own MySpace presence, featuring news and exclusive tracks from Porcupine Tree and his other projects.
SWHQ: Steven Wilson's official site, offering the latest news and information his non-PT projects: No-Man, Bass Communion, Blackfield and work with other artists.
Yahoo! Groups - Dark Matter: Active forum devoted to on-topic discussion of Porcupine Tree and closely associated projects.