In no particular order
Not many yet but I'm sure the number will increase.
Triker Ox's Trike Links Page
BlackJack's Bike Tech (excellent techstuff).
Trikestuff (commercial sites)
B B Customs
Z cars - makers of my anti-roll bar - incredible service
UK XS1100 Forum
The XS XJ Owner's Association
Arrowhead Trike & Bike Social Club
Hurley-Pugh (The Graet Marque)
Gray's Shadow Pages
Great Online Biker mag
Got a link to add ? mail me (see guestbook)