- A.D.I.P.S.O
- A.I.D.A.
- A.I.S.P.
- I.F.P.A.
- A.S.N.P.V.
- American Academy of Dermatology
- American Academy of Dermatology Association
- National Psoriasis
Foundation
- PsoriasisSupport
- E-Medicine
- Johns Hopkins Arthritis Center
- Merck Manual
- Psoriasis Genetics Laboratory 'Familial Psoriasis Study'
- WebMDHealth
- Dermatology Online Atlas
- Psoriasis-Friends
- Medscape