Electron Accelerator ELSA
ELSA Electron Stretcher and Accelerator, Physics Institute, Bonn University
http://www-elsa.physik.uni-bonn.de/index_en.html

Oak Ridge Electron Linear Accelerator Pulsed Neutron Source
The ORELA is a powerful electron accelerator-based neutron source located in the Physics Division of Oak Ridge National Laboratory.
http://www.phy.ornl.gov/orela/orela.html

Dortmund Electron Test Accelerator - DELTA
Provides a range of information on the facility at the University of Dortmund. Includes data on the superconducting asymmetric wiggler and the first free electron laser experiment.
http://www.delta.uni-dortmund.de/

Cornell Electron Positron Storage Ring - CESR
Electron-positron collider with a circumference of 768 meters. Features information on the accelerator, synchrotron, and storage ring. Includes operation methods, diagrams and MPEG clips.
http://w4.lns.cornell.edu/public/lab-info/cesr.html

MAX-lab, Lund University, Sweden
MAX-lab National Laboratory for Synchrotron Radiation in Sweden.
http://www.maxlab.lu.se/

Stanford Linear Accelerator Center - SLAC
Design, construct and operate electron accelerators and related experimental facilities for use in high-energy physics and synchrotron radiation research. Includes publications, education, and facility tours.
http://www.slac.stanford.edu/

FOCUS GmbH
Manufactures electron microscopes, equipment for surface analysis, evaporators, electron excitation sources, and electron energy analyzers.
http://www.focus-gmbh.com/

DELTA, Uni Dortmund
DELTA 1.5 GeV electron accelerator facility at the University of Dortmund, Germany.
http://www.delta.uni-dortmund.de/

Accelerator Form and Function
Explains what they are used for, the different types, and how they work. A virtual tour from Stanford Linear Accelerator Center.
http://www2.slac.stanford.edu/vvc/accelerator.html

Particle Accelerator News
Summaries of the latest advances in accelerator physics from the American Institute of Physics. Updated weekly.
http://newton.ex.ac.uk/aip/catagories/particle_accelerators.html