Electronics & Electricity

Twisted Pair Electronics Glossary
Dictionary of electronics terms. Also check out the listing of metric prefixes.

Glossary of Insulator Terms
A must-see before or after you take a pole-climber's testimony. Crucial for figuring out the difference between a Philadelphia Mad Hatter and a Peacock Mickey.

Semiconductor Resource Center
Great site with links to many semi manufacturers, distributors and data sheets.

Environment & Pollution

EPA ... Alphabetical Listing of All Environmental Topics
Listing of environmental terminology and acronyms compiled by the EPA.

Bureau of Reclamation DataWeb
Find Information on Reclamation Reservoirs, Reclamation Facilities, Water Data, Engineering, Contacts, and more!

Atmospheric Chemistry and Air Quality Glossary
Very comprehensive dictionary of air pollution terminology. Extremely helpful.

Nuclear Regulatory Commission
Glossary of nuclear power terminology.