I was looking around for a knot site that I had found previously, and thought I would post the ones I know and like.
This is one of my favorite Knot websites. It has a multitude of knots, and the knots are animated to show how they are done. What I like most about the site is that you can sped or slow down the animation, or view it in stills, or even rotate or flip the animation.
Also Animated, but not as good as a site as the above.
Videos of knots
A list of links related to Rope and knots
A sight sponsored by Sampson Rope. The above link brings up their page on rope splices.
A site by J C Clancy.
Mick Alderson’s page on Rope.
And something new: http://www.squid-labs.com/projects/erope/