St John's Institute of Dermatology, London
www.kcl.ac.uk/depsta/medicine/dermatology/index.html

British Association of Dermatologists
http://www.bad.org.uk/

The Royal College of Physicians
http://www.rcplondon.ac.uk/

The National Psoriasis Foundation, USA
http://www.psoriasis.org/

The Stationers Hall, London
http://www.stationers.org/index-hall.asp

Psoriatic Arthropathy Alliance
http://www.paalliance.org/

The Psoriasis Association Inc., Australia
http://www.psoriasis.org.au/

The Dermatology Centre, University of Manchester
www.hop.man.ac.uk/Academic/researchdevelopment/Themes/Dermatology/dermatolgy_frame.htm

The International Psoriasis Council
http://www.psoriasiscouncil.org/

The Psoriasis Association, (U.K.)
http://www.psoriasis-association.org.uk