Vacuum

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.
http://home.howstuffworks.com/thermos.htm

Vacuum Technology Lessons - Lessons and practical exercises on Vacuum Technology.
http://acept.la.asu.edu/PiN/rdg/vacuum/

Vacuum Technology and Vacuum Coating Forum - Discuss subjects about vacuum physics, vacuum and coating systems, evaporation coating and sputtering technology.
http://www.industrycommunity.com/myforum/alex_yuan/index.html

Thermo Vacuum Generators - Manufacturers of UHV components. Reference data on vacuum components (pumps, gauges, valves, and flanges) including their principles of operation.
http://www.vacgen.com

Introduction to Vacuum Technology - Some basic principles for beginners. [PDF]
http://www.phys.uwosh.edu/rioux/texts/vacuum.pdf

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.
http://www.vacuumspecials.nl

The Bell Jar - Site of vacuum technology and techniques for students and amateur scientists. Articles; links; experiments.
http://www.belljar.net/

Mc Nally Institute - An excellent resource with enormous amount of information for advanced vacuum users about pumps and seals (troubleshooting, specifications etc.)
http://www.mcnallyinstitute.com

What is vacuum? - Nice web-site for beginners who want to know "what vacuum is"...
http://www.inter-uni.com/wanttoknow/index.html

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.
http://www.oxford-vacuum.com

International Union for Vacuum Science, Technique, and Applications - International meetings, conferences and workshops, educational opportunities, international awards and prizes.
http://www.iuvsta.org

Ultra High Vacuum - Describes what ultra high vacuum (UHV) is, why we need in it, how to get UHV.
http://www.getphysics.net/index.htm

The Society of Vacuum Coaters - Education and information about vacuum coating. Technical conferences, educational programs, publications.
http://www.svc.org/

American Vacuum Society - Includes descriptions of the society's aims, online access to publications, administrative information, related news and information on conferences.
http://www.avs.org/

Building your own Vacuum pump - How to build your own Vacuum pump
http://www.dream-models.com/eco/vacuumpump.html