There is an article giving some overview of “knots” in the Washington
Post of 19 March, available at
http://www.washingtonpost.com/wp-dyn/content/article/2007/03/18/AR2007031801483.html
which should be of interest to readers of this forum.
It is not clear what motivated this article, except perhaps a twice annual meeting of
mathematical knotters in April?
knudeNoggin