Wind-Works
Paul Gipe hosts a series of of articles and commentary primarily--but not solely--on wind energy, Feed-in Tariffs, and Advanced Renewable Tariffs.
http://www.wind-works.org/

WIND-DIESEL - VESTESEN A/S - Wind-Diesel Systems, Desalination, High Wind Penetration
WIND DIESEL. Wind diesel power plants by Vestesen A/S (Danvest Energy A/S). The wind/diesel systems range from 100-10,000 kW continuous power supply.
http://www.danvest.com/

Parallax Energy Systems Ltd.
Superior voice quiality wireless gas detectors (H2S, SO2, Benzene). Wide variety of versions each with configurable set points. Purchase, lease, or rent.
http://www.parallaxenergysystems.com/

Second Wind Inc.
Second Wind provides systems for wind resource assessment, including the Triton Sonic Wind Profiler which uses advanced sodar, the Nomad 2 data logger, and complete tower systems and sensors.
http://www.secondwind.com

Walz
WALZ - one of the worlds top producers of highly sophisticated photosynthesis measuring systems. The current product line ranges from the well known PAM Chlorophyll Fluorometers to measuring systems of plant gas exchange for physiological and ecophysiological research
http://www.walz.com/

U.S. Department of Energy Wind and Hydropower Technologies
Information on the DOE wind and hydro energy program, wind power projects, wind turbine technology and research, and wind energy basics.
http://www.eere.energy.gov/windandhydro/

Tim Olsen Consulting, Wind Energy Specialists
The goal of Tim Olsen Consulting is to develop clean, efficient, cost-effective wind energy systems and resource technologies, and to guide society toward minimal consumption and environmental impact through renewable windpower.
http://www.windtechnology.com

American Wind Energy Associan
American Wind Energy Association - the national trade association for the wind energy industry.
http://www.awea.org/

Comptus Inc.
Comptus is a manufacturer of durable monitoring instruments and systems. Comptus weather instruments include wind meters, wind alarms, barometers, rain gages, solar radiation meters, air temperature & relative humitity. Comptus also manufactures ampere hour and watt hour meters for measuring direct current (DC). All instruments are packaged in NEMA & IPS rated enclosures. They operate from 12, 24, 48, 120 , 250 VDC , 24, 120 and 230 VAC 50 and 60 Hz. Standard analog output signals include 4-20 mA, 0-1 mA and 0 -1 volt.
http://www.comptus.com/

Raytech Measuring Systems
Raytech Measuring Systems builds and sells precision measuring equipment for industrial manufacturers.
http://www.raytech-measuring.com