The EMF Guru
http://www.emfguru.org/
Roy Beavers, aka: The EMF Guru, has a new site where you will find many of his essays on this topic. (The archives of his mailing list can be found here at Wave-Guide.)

Microwave News
http://www.microwavenews.com/
Microwave News is one of the most respected sources of information on Microwave Bioeffects and Public Health.

Electric Words
http://www.electric-words.com/
Australian writer Stewart Fist writes on this topic, and has some very interesting essays on junk science, as well as other science topics.

Bridlewood Electromagnetic Fields
(EMFs) Information Service
http://www.ncf.carleton.ca/bridlewood-emfinfo/
Bridlewood is one of the oldest and most comprehensive sites on this subject. They have an excellent bibliography.

Powerwatch
http://www.powerwatch.org.uk/
Another old and well established site, this one is in the UK.

Electromagnetism & Life
http://www.ortho.lsuhsc.edu/Faculty/Marino/
EL/ELTOC.html
Dr. Robert Becker and Dr. Andrew Marino collaborated on this treatise on the electromagnetic nature of life.

Powerline EMF and Human Health
http://www.ortho.lsuhsc.edu/Faculty/Marino/
Powerline/PowerlineTOC.html
Dr. Andrew Marino here describes [among other things] the fundamental differences in scientific method employed by physicists versus biologists, and how this impacts the EMF Bioeffects debate.

Recommended Sites, continued

C-A-R-E
http://www.c-a-r-e.org/
Colorado site with excellent information, including Lookout Mountain. (Lookout Mountain already exceeds FCC power limits, and broadcasters are pushing hard for more transmitters anyway.)

Sutro Tower Community Perspectives
http://www.sutro.org/
Sutro Tower in San Francisco is another situation where the laws are secondary to profits ... antennas and tanks have been put in without permits. So many antennas are now on the tower that some question the structural integrity.

The EMR Network
http://www.emrnetwork.org/
Another grassroots organization with good people and great information.

FEB
http://www.feb.se/
Excellent swedish site with information on ES, a state of hyper sensitivity to electromagnetic fields.