The National Psoriasis Foundation, some helpful resources (and probably the only site in this list that isn't flagrantly capitalizing on the disease...); great starting place for any psoriatic.
Aase Marit's Psoriasis and Eczema Homepage, more helpful resources, and nothing to sell (as far as I can tell...)
FLAKE HQ, one man's personal experience with the disease, all out in the open for everyone to see (and to buy his books...) (don't ask me for a literary review; it wouldn't be pleasant... still, you gotta give him credit...)
Dead Sea Mor Clinic, a romantic getaway at an unreasonable price...