what I learned about worming goats

This whole goat keeping has quite a learning curve, especially since any book you read and anyone you'll ask has a different opinion and way of doing things! Plus, most internet sites are not local to your area so what works for them does not necessarily apply or work for you...

in short: what I learned asking anyone I could find:
don't try and figure it out yourself, instead focus on finding a goat specializing veterinarian and have her inspect your flock and living conditions and ask for advice - she knows the area and any problems other goat keepers might have.

do not worm everyone and do not worm on a schedule - consult with a vet, or collect fecal samples yourself, for fecal worm egg counts and only treat the ones who need it. It's just like antibiotic use: the worms become resistant from regular exposure.

do no listen to sales people; they're great for general info but are not trained vets...

if you find a wormer off the shelf do not trust the dosage on the label if it is not specifically labeled for goats; of course they are different and need a much larger dosage a vet will need to tell you...

In our area Cornell Ambulatory Clinic and especially Dr Mary Smith are very good goat resources. They sure know about goats, come right to the farm and are affordable. They will let you (and show / teach you) give subQ injections like booster shots and they can process your fecal samples to determine your worming schedule. Dr Mary Smith prescribed labeled for goat Safeguard, available locally at Tractor Supply for about $20, to worm my herd of three (but only two, the kid was ok).

I found two other wormers which I'm interested in:
Molly's Herbal Wormer which is a weekly feed additive consisting of once every 8 weeks a dose of formula 1 herbal wormwood combination and the other weeks a dose of formula 2 herbal weekly worm formula & tonic. It's not that expensive, it's organic and it helps boost general health and the immune system. But; formula one can not be used in pregnant goats, and of course I just bred both Thirteen and Monica...

Another one that looks interesting, and is also available for poultry, is Verm-X USA which are certified organic herbal intestinal parasite control pellets. It seems to come out to about the same cost per month, or maybe a little more than Molly's, but they're imported from England and it does not always seem to be available.

Both Molly's Herbals and Verm-X have horse specific organic wormers available as well.