American Vacuum Society - Includes descriptions of the society's aims, online access to publications, administrative information, related news and information on conferences.
The Bell Jar - Site of vacuum technology and techniques for students and amateur scientists. Articles; links; experiments.
How Thermoses (Vacuum Flasks) Work - For inquisitive people howstuffworks.com tells about how thermoses work. You can find there other vacuum-based devices as vacuum cleaner and television.
Mc Nally Institute - An excellent resource with enormous amount of information for advanced vacuum users about pumps and seals (troubleshooting, specifications etc.)
Oxford Vacuum Science - Oxford Vacuum Science Ltd promotes good vacuum practice and understanding through the provision of training, design and consultancy services, and supply of bench-top thin film deposition research equipment.
The Society of Vacuum Coaters - Education and information about vacuum coating. Technical conferences, educational programs, publications.
Thermo Vacuum Generators - Manufacturers of UHV components. Reference data on vacuum components (pumps, gauges, valves, and flanges) including their principles of operation.
Ultra High Vacuum - Describes what ultra high vacuum (UHV) is, why we need in it, how to get UHV.
Vacuüm Specials, The Netherlands - Specialised in the implementation, construction, manufacturing of components and subsystems and the realisation of complex projects on a turnkey basis regarding vacuum technology and cryogenic applications.