- Centre for Manx Studies
- http://dbweb.liv.ac.uk/manninagh/
- Isle of Man tourism
- http://www.isle-of-man.com/index.shtml
- Celtic Crosses on Man
- http://www.gov.im/mnh/heritage/story/manxcrosses.xml
- http://www.neh.gov/projects/si-school.html
- University of Glasgow
- http://www.gla.ac.uk/about/photogallery/
- Celtic Studies Association of North America
- http://www.csub.edu/~cmacquarrie/csana/
- The Waves of Manannán
- http://www.lilypublications.co.uk/