Porcupine Tree - Main webpage of Porcupine Tree
Steven Wilson Headquarters - Website of PT's lead man Steven Wilson
Gavin Harrison - Website of PT's drummer Gavin Harrison
Ex-Wise Heads - PT's bassist Colin Edwin's side project
Richard Barbieri - Website of PT's keyboardist Richard Barbieri
John Wesley - PT touring guitarist and solo artist John Wesley
Blackfield - Side project of Steven Wilson w/ Aviv Geffin
no-man - Side project of Steven Wilson w/ Tim Bowness
Lasse Hoile - Website of PT's visual artist and filmmaker Lasse Hoile
Burning Shed - Porcupine Tree online store
Anesthetize - German PT fansite