The Cosmic Spiral

Links to interesting spiral-related websites

An extensive collection of modern corporate logos that include a spiral http://www.splorp.com/critique/

How to calculate and draw a logarithmic spiral - http://mathworld.wolfram.com/LogarithmicSpiral.html

Article about spiral galaxies - http://www.seds.org/messier/spir.html
The Mystic Spiral - a book by Jill Purce that's pretty good.

Spiral Gate - The Arc of the Covenant - text and lots of pictures of spirals in art and nature.