Ruth Niles http://www.torne-lignum.com/
Ruth is an accomplished turner who has a number of different things for sale here. I consider her coffee cup essential for getting started in the morning. The bottle stoppers are the best you can buy. Beware of imitations though, and buy from Ruth for the best!
Doug Thompson http://www.thompsonlathetools.com/
Doug is highly regarded as one of the best tool manufacturers today. Not only that, he has some of the best prices. If you are looking for a gouge or chisel, look here first. You will not be disappointed.
Monster Wood Tools http://www.monster-wood-tool.com
Randy Privett of Monster Wood Tool makes some of the best tools and accessories around. See Randy for your tool rest or hollowing tool needs.
Robust Lathes http://www.turnrobust.com
My main lathe is a Robust. Need I say more?
Vega Lathes http://www.vegawoodworking.com/
For those of you looking for a bowl lathe that is powerful, sturdy, and reliable, this is it. I have had one in my shop since 2005, and featured it in my second video, Beyond the Basic Bowl.