I'd say I primarily order through Exotic Blanks and Turner's Warehouse. Both are excellent at shipping fast, and both have great selection. I also order from PSI, WoodTurningZ, Crooked Mill, Bear Tooth Woods, sometimes Berea (which I think is mainly what Woodcraft pen kits are as well, and I sometimes buy woodcraft kits locally.) I get all my bushings from tbcbushings.com except when I order from Turner's Warehouse, as they ship their own TBC bushings in these great little containers.