Jewish Vegetarian and Ecological Society, ivu.org/jvs
Jewish Vegetarians of North America, www.JewishVeg.com
VeggieJews, www.groups.yahoo.com/group/veggiejews
(free registration required)
A Case for Jewish Vegetarianism, www.goveg.com/feat/jewishveg
The Vegetarian Mitzvah, www.brook.com/jveg