Information Unlimited  
   Science projects for the electronics hobbyist, including Tesla coils and power supplies, high voltage engineering, neons, power supplies, and transformers.
   http://www.amazing1.com/

High Voltage Link List  
   A list of links for electrostatic machines, history of physics and electricity, high voltage devices, and electronics.
   http://www.coe.ufrj.br/~acmq/links.html

Sam Barros' POWERLABS  
   Plans, diagrams, pictures, movies and full descriptions dozens of different devices; several High Voltage generators, Tesla Coils, Plasma Globes, Gauss and Coil Railguns, other electromagnetic weapons.
   Http://www.powerlabs.org/

Hot-Streamer  
   A site with significant amount of information about high voltage in general and Tesla Coils in particular. Much theory and practical information. HV pictures, construction tips, schematics.
   http://hot-streamer.com/

High Voltage Equipment Suppliers  
   A link list of high voltage component suppliers.
   http://home.earthlink.net/~jimlux/hv/supplier.htm

Sam's Gadget FAQ  
   Salvaging interesting gadgets, components, and subsystems. Including HV parts from hither and yon.
   http://www.repairfaq.org/sam/gadget.htm

What is High Voltage  
   A guide to online information about high voltage. It features a number of resource links including that on high voltage applications and component suppliers.
   http://www.chipcenter.com/circuitcellar/november99/c119r16.htm

Repro's of Classic HV texts  
   Quite a few reproductions of classic High Voltage texts from the "Golden Age" of High Voltage research.
   http://people.clarityconnect.com/webpages2/arcsandsparks/reprintpage.html

Detecting the Earth's Electricity  
   An article from Scientific American 1999 about the field mill voltmeter and the results on Earth's electricity.
   http://www.sciam.com/article.cfm?articleID=00000ED3-69CA-1C72-9EB7809EC588F2D7

High Voltage by Jochen Kronjager  
   Tips and construction details for HV projects. HV components, measuring techniques, HV sources, and details of experiments.
   http://www.kronjaeger.com/hv/

PV Scientific Instruments  
   Working models of apparatus used in great discoveries in electricity, magnetism and atomic physics.
   http://www.arcsandsparks.com/

TREK, Inc.  
   Provider of high-voltage devices and instrumentation, including electrostatic voltmeters, high-voltage power amplifiers, surface resistance meters, and charged-plate monitors.
   http://www.trekinc.com/