Over on Texas Fly Reports, bunch of us came up with this list of fly tying sites, Please add yours if knot (pun intended) to the list:
http://www.charliesflyboxinc.com/
http://www.tie1on.net/
http://www.danica.com/flytier/
http://www.killroys.com/
http://www.animatedknots.com/index.php
http://www.flyline.com/fly_patterns/
http://www.warmwaterflytyer.com/welcome.asp
http://www.flytyingforum.com/index.php?act=idx
http://www.flyfishohio.com/
http://www.troutflies.com/
http://www.eflytyer.com/
http://www.cbel.com/fly_fishing/