Spirited discussion! Excellent class! I hope you all enjoyed it as much as I did.
Here are a couple of links related to what we talked about:
National Association for Scientific and Cultural Appreciation
Nasca Lines on Google Sightseeing
This is the article I mentioned that refutes many of the claims made in Goddess Remembered. His axe-grinding writing style does nothing to add to his credibility, but he does make some interesting points.
And finally, this website lists many of the chalk figures that appear in the hills in England.