For those interested in serious Crop Circle, Alien/UFO Research check 
out http://www.4dreamland.com

They have an extensive, well done series of CD-ROM and DVDs covering
everything. UFOs, Crop Circles, UFO Cover-Up, Abductions and my 
favorite, UFO sightings by commercial airline pilots, presented by
Dr. Richard F. Haines of NASA. Very good stuff.

The CD-ROM & DVDs can be seen at: 
http://www.4dreamland.com/xcart/customer/home.php

Thanks!