One of your sites is dedicated to the eradication of floride treatment of water (and toothpaste and dentist-applied floride treatments). Some of the claims, er, allegations that site links to are of the outrageous sort usually found in the tabloids. Some of the cites (linked sites, too) to seem to have some possible scientific basis but who knows?. I am not sure anyone really knows the whole truth, but I am convinced to this point that floride treatment does significantly reduce dental caries.
The internet helps debunk some things and "helps" increase the bunk in other things. Used to be one could seek the motive of claimants and make some intelligent deductions, but there ARE a lot of kooks and kooky sites on the www - look at us...<grin> I truly do not know how much information and allegation is accurate on the floride action network nor how significant the alleged problems are, but overall it IS suspiciously strident.
My opinion is a that lot of the allegations are in the "so what?" category. Like, did you know how poisonous water is? I mean, if you ingest too much of it, it can kill you by disrupting your electrolyte balance - a horrible and painful death as you are wracked by muscle spasms, violent cramps, and the swelling of internal organs... Join the ban-drinking-water coalition and save humanity...
I've read some of their stuff previously and remain skeptical. If they have serious material/evidence, why throw all that other "me too" nonsense in there? But perhaps they have some good info - it's just hard to tell. YMMV; I don't buy it right now.
We have an EPA that proposes some absolutely ridiculous drinking water standards on a regular basis - and in certain regions has even mandated standards that are unbelieveable in various situations you've probably never heard of. Yet they continue to permit (or even endorse) floridation of drinking water. Hmmm... gotta make up your own mind on this; I'm not trying to convince you either way. Just check your sources and try to figure out who knows what they're talking about and if they're telling the (whole) truth.
Good luck... <grin>