it is right on the front page about a third of the way down the page in red letters...

Quote from Formularies from page:

"Free Shipping anywhere in the Continental US!

Here’s how it works: as the Photographers’ Formulary and Fine Art Photo Supply Christmas Special, for the entire month of December 2006 on any prepaid retail order over $55.00, get free shipping via our choice of ground shipper, to any point in the Continental United States. While shipping on these prepaid orders will be free, this offer does not include any HAZMAT charges or charges for any special handling. This offer comes only once a year, and is good from your receipt of this newsletter until midnight, December 31, 2006."