The British Sundial Society (BSS). BSS website with comprehensive information on sundials. Visit the sundial designers, consultants and makers page.
External Works Index. The directory for architectural and landscape projects. Visit Macmillan Hunter Garden Sundials page.
Shadows Pro by François Blateyron is the ideal software package for understanding and designing sundials and astrolabes, with sundial makers.
Sundials of Scotland. Descriptions with photographs of Scottish sundials, ancient, old and new as well as sundials from some other places, all by sundial enthusiast Dennis Cowan.