Crop Circles Videos 

http://video.google.com/videoplay?docid=-7825334831811780953&hl=en 

http://video.google.com/videoplay?docid=-5844416832540956934&q=mayans&hl=en 

http://video.google.com/videoplay?docid=6862606159024254171&hl=en 

http://video.google.com/videoplay?docid=3615029897397109374&q=crop+circles&hl=en