Lucy Pringle's site
Lucy Pringle's site, specializing in crop circles : contains archives from the formations in Wiltshire since 1990.
Steve Alexander's site
A website which proposes a wide selection of remarkable air photos, by Steve Alexander.
Crop Circle Connector
The best known site on crop circles.
Andreas Müller's site
A very complete site from German researcher Andreas Müller
(in German and English).
UK Crop Circles
Very beautiful pictures from the formations of Wiltshire.
The « fairy circles » in Namibia
The site « Fairy Circles » in Namibia.
Col de Vence site
The site specialized in the observation of the luminous phenomenon (balls of light, orbs, ...) (in french).
Nature and Geobiology
The site of a geobiologist, Yann Lipnick, to learn to contact nature spirits (in french).
Geobiology and Nature Spirits
The site of a geobiologist, Jean-Pierre Martinez, to learn to contact nature beings (in french).
Norwegian Crop Circle Group
A very complete site on crop circles and related phenomena.
Crop Circles and More
Website of the dutch researcher Bert Janssen, specialised in the geometric reconstructions of the crop circles, and who proposes a map of England with the localisations of all the formations of the year, since 2010.
Webwite of the dutch researcher Janet Ossebaard.
Des cercles dans la nuit
The french site about crop circles of Umberto Molinaro (in french).