Electric Space Propulsion
- Research carried out by the Institute of Space Systems. Also contains a good overview of the various types of electric propulsion.
- http://www.irs.uni-stuttgart.de/RESEARCH/fe_f200e.html

Mini-Magnetospheric Plasma Propulsion
- An advanced plasma propulsion system that will create a large scale magnetic bubble around the spacecraft to ride the solar winds.
- http://www.ess.washington.edu/Space/propulsion.html

Electric Spacecraft, Inc.
- A network for researchers of electrodynamic field propulsion techniques for space travel.
- http://www.electricspacecraft.com

Hall Thruster Experiment
- Princeton Plasma Physics Laboratory. This site documents the undergoing research in electric propulsions.
- http://htx.pppl.gov

Variable Specific Impulse Magnetoplasma Rocket (VASIMR)
- Description of one of the propulsion systems being considered by NASA for a manned Mars mission.
- http://www.nasatech.com/Briefs/Sep01/MSC23041.html

Electric Propulsion and Plasma Dynamics Laboratory
- Research in electric propulsion, plasma thrusters and fundamental problems in plasma physics. Princeton University.
- http://alfven.princeton.edu/

How Electromagnetic Propulsion Will Work
- Illustrated tutorial shows how Goodwin's electromagnetic-propulsion system works and how it could send spacecraft deep into space.
- http://www.howstuffworks.com/electromagnetic-propulsion.htm

Xenon Ion Propulsion
- Description of Boeing's commercial XIPS (Xenon Ion Propulsion System). Designed for satellites, but a specialized version of it was used on NASA's Deep Space 1 spacecraft.
- http://www.boeing.com/defense-space/space/bss/factsheets/xips/xips.html

Tethers Unlimited
- Use of space tethers for propellantless electrodynamic tether propulsion, pumped tether length propulsion, and transferring energy and momentum from one spacecraft to another.
- http://www.tethers.com

UMich Plasmadynamics & Electric Propulsion Laboratory (PEPL)
- Researching electric space propulsion with the goal of increased efficiency and better understanding of spacecraft integration issues.
- http://www.engin.umich.edu/dept/aero/spacelab/

Solar-Electric Ion Propulsion
- One of the 12 advanced technologies that was validated by DS1 during flight.
- http://nmp.jpl.nasa.gov/ds1/tech/sep.html

Ion Propulsion FAQ
- A beginner's overview of ion propulsion.
- http://nmp.jpl.nasa.gov/ds1/tech/ionpropfaq.html

Centrospazio
- A space technology research laboratory specialized in Electric Propulsion development and testing: Hall thrusters, FEEP systems, MPD thrusters, arcjets.
- http://www.centrospazio.cpr.it