Fischer Precision Spindles, Inc.
FISCHER PRECISION SPINDLES offers a wide variety of new spindles, peripheral products including drives, chillers, tool holding, tool monitoring, contact sensing devices, and custom engineered solutions to address all of your spindle and performance needs.
http://www.fps-spindles.com/

Centerline, Inc.
Centerline sales service and engineering of precision machine tool spindles, high frequency spindles, motorized spindles, belt driven spindles and accessories, precision bearings and non-contact seals
http://www.centerline-inc.com

Pope Precison Spindle Technologies
Manufactures, remanufactures, upgrades, and repairs machine tool spindles for such operations as drilling, milling, and grinding.
http://www.popespindle.com/

Parmar Industries
Manufacturer and exporter of all type textile spindles including energy saving spindles for spinning and twisting machines.
http://www.parmarinds.com

Dynomax Inc.
Dynomax is an ISO 9001:2000 and AS9100 certified company specializing in the design, manufacture, and repair of machine tool spindles. Headquartered in the Chicagoland area since 1986, Dynomax provides a rare domestic source for precision spindles unmatched in both quality and performance. Having shipped thousands of spindles to the biggest names in American manufacturing for the past 22 years, Dynomax has the experience required to get the job done right. With an extensive engineering background, Dynomax is more than just a spindle supplier. Our in-depth technical knowledge of the complete spindle assembly allows us to provide our customers with spindles that perfectly match their unique applications and our on-site engineering staff is always available to help answer any technical questions.
http://www.dynospindles.com

International Machine & Tool Corp.
Manufacturers of motion systems, especially angular positioning and rotary motion devices. Also manufactures and distributes products such as grinding, milling and turning spindles, metric worm gears, specialty bearings and automation components.
http://www.imtsystems.com/

Medieval North European Spindles and Whorls
Short article with descriptions of the spindles and whorls used by Scandinavian yarn spinners from 800 to 1500 CE. Author: Carolyn Priest-Dorman.
http://www.cs.vassar.edu/~capriest/spindles.html

Popowich Milling Ltd.
Popowich Milling Ltd. is a rapidly growing, privately owned, oat company located in Yorkton, Saskatchewan, Canada, in the heart of the prairie oat country. We have 2 mills, an organic oat mill and a new state of the art conventional oat mill. We have 20 years of experience in the oat field. We are located 2 hours from Regina, and 3.5 hours from Saskatoon.
http://www.popowichmilling.com

SolidCAM
CAD/CAM System for 2.5D milling, 3D milling, turning and wire EDM, with a standalone modeller, or integrated in common CAD systems.
http://www.solidcam.com/

PCB Milling
Offers mechanical milling and drilling for home enthusiasts and low-quantity prototyping up to 2 layers, FR4, with no photoplots necessary. Site also provides a good tutorial for beginners.
http://www.pcbmilling.com/