Software

RockWare - Earth Science software specialists, providing a large range of mapping, data analysis, modeling, and educational software.

AzTechSoft - software and resources for the Engineering, Architectural, and AutoCAD Communities.

Schlumberger Water Services - Developers of WinPEST and Visual PEST-ASP.

Universities

University of Waterloo - The Environmental Modelling and Analysis Group.

Federal Agencies

EPA      EPA Home Page  
EPA - Superfund     EPA Superfund Page
GPO - Government Printing Office (CFR, and other regulations)
NCDC - National Climatic Data Center
NOAA - National Oceanic and Atmospheric Administration   
USGS - U.S. Geological Survey Home Page
USGS - NWIS - U.S. Geological Survey - Surface Water Data
EC - Environment Canada

Federal Information

FedWorld - Searches of many federal agencies
Legal Information Institute - Cornell Law School - Reg's and Codes
Thomas - U.S. Congress

State Agencies

All States - State and Local Government Resources

California - California State EPA
Colorado - Dept. of Public Health and Environment
Maryland - Dept. of Environment
Virginia - Dept. of Environmental Quality
New Mexico - NM Environment Dept.
New Mexico  - Office of the State Engineer
Oregon - Dept. of Environmental Quality
Washington - Dept. of Ecology

Professional Organizations

AGU - American Geophysical Union
GSA - Geologic Society of America
NGWA - National Ground Water Association
ITRC - Interstate Technology and Regulatory Council

General Science Publications

Nature
Science 
Scientific American

Search Engines

AltaVista 
Excite
Google
HotBot
Lycos
Yahoo

Everything

RefDesk - Dictionaries, encyclopedias, and more  "Colin Powell's favorite site"
EurekAlert! - "Global Gateway to Science, Medicine, and Technology News"

Just For Fun

Boulder Cam - Check out the corner of 9th and Pearl, near our Boulder office