Online Mendelian Inheritance in Man - Xeroderma Pigmentosum
- Includes summaries of genetic research results and citations.
- http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=OMIM&dopt=Detailed&tmpl=dispomimTemplate&list_uids=278700

National Organization of Rare Disorders - Xeroderma Pigmentosum
- Offers alternative names, a general discussion and resources.
- http://www.rarediseases.org/search/rdbdetail_abstract.html?disname=Xeroderma%20Pigmentosum

Xeroderma Pigmentosum
- An article about this disorder in English and Italian along with some images.
- http://digilander.libero.it/camdic/XERODERMA%20PIGMENTOSUM.html

XP Support Group
- UK-based organisation giving support, help and information to those affected by xeroderma pigmentosum and other photosensitive conditions.
- http://www.xpsupportgroup.org.uk

Children of the Moon
- A portal site that provides an online community for children, teens and adults with xeroderma pigmentosum.
- http://www.moonchildren.com

Xeroderma Pigmentosum Society
- Resource for information about the disease and about the not-for-profit support organization devoted to supporting patients and families and promoting research. Links, contact information, XP Society news about fund raising events and the unique Camp Sund
- http://www.xps.org