I've noticed a new website that promises to have a huge stock of hard-to-find threads for your shopping pleasure. And there is no shipping charge for regular shipments via the U.S. mail.
http://www.fibersandthreads.com/why_us.htm
They are affiliated with a shop in New Hampshire. I don't know anything about them but if indeed they can dig up hard-to-find threads for us and deliver them at no shipping, they are worthy of a bookmark!
http://www.contoocookneedleworkgallery.com/
***************
mirror site
http://360.blog.yahoo.com/chillyhollow