- PKS Kids
- Includes biographies and photos of children with the syndrome, first-hand information from parents, and links to related support and equipment resources. - Bigger than our Bodies - Contains news, events and links related to PKS.
- Frappr Maps: PKS Support - A map of individuals with the condition around the world, including photos.
- Jake's World - Features the biography, photos and videos of a child with PKS.
- National Library of Medicine - The synonyms of chromosome 12p tetrasomy syndrome, a summary and a list of major features.
- NORD: Pallister Killian Mosaic Syndrome - Offers the synonyms, a general discussion and further resources.
- OrphaNet: Tetrasomy 12p - A collection of global organizations and support groups related to the genetic condition.
- Pallister-Killian Mosaic Syndrome - Offers overview, support and news in English and Italian.
- PKS Support - An online support group, with a discussion forum, family photos and informal surveys.
