Useful Links
Efunda - Extensive online engineering, maths and physics reference guide

diracdelta - Science and Engineering Encyclopedia

Glossary - Glossary of Vibration Terminology from the Vibration Institute, USA

EEVL - Edinburgh Engineering Virtual Library

UKAS - United Kingdom Accreditation Service

Defence standards - Def Stan, UK MOD Standards resource

Mil Std's - US Army Military standards resource

BSI - British Standards Institute - standards resource

IEST - Institute of Environmental Sciences and Technology

SEE - Society of Environmental Engineers

EIS - Engineering Integrity Society

Eng-Tips - Engineering Tips forum

BiNDT - British Institute of Non-Destructive Testing

IM&C - Institute of Measurement and Control

Vibration Test Website - Supplier database, Product news and Technical info