[protest1]

Here is a web site by some of the guys who go around making crop circles.

http://www.circlemakers.org/

[Houmatt]

Here is a site that trashes the would-be hoaxers.

[Quix]

The crop circle hoaxers still do not account for the authentic crop circles with 4-5 or so very specific scientific distinctives always NOT present in the hoaxed ones.

The History Channel's program on them was good.