I have seen many references to websites scattered through threads but no thread devoted to the subject, that I can find. Please do not contribute food sites, unless food is ancillary to hardware.
There is a thread for online food sources here: http://chowhound.chow.com/topics/5035...
Here's my list. I have not bought from all of them and there are some solely for knives. Many are referrals from other people.
I am about to purchase new appliances and am specifically looking for induction cooktop sources (but everything else will be replaced, too). So, for me, I want to include major appliances.
http://www.chefsresource.com/ rated as good
http://www.abestkitchen.com/ Restaurant Supplies
http://www.cookwarenmore.com/ AllClad Irregulars
http://www.jbprince.com/ Kitchen Tools & Equipment
http://chefscatalog.com/ Rated as good place
http://www.cutleryandmore.com/ not only knives-a good place (several purchases)
http://www.kingarthurflour.com/shop/l... Baker's Catalog Online Store (numerous purchases)
http://www.chefdepot.net/ disorganized site
http://www.epicedge.com/ Japanese and European professional chefs knives
http://shop.niimi.okayama.jp/kajiya/e... Takeda knives http://www.japanesechefsknife.com/RYU... Japanese Kitchen Knives
http://www.korin.com/mainCategory.php... Fine Japanese Tableware and Chef Knives