I am active in Vegetarian Society (Singapore): www.vegetarian-society.org. For example, I'm one of the editors of its free e-Newsletter.
You can obtain a free subscription by going to the Society's homepage and putting your email address in the appropriate box near the bottom of the page. Yahoo will then send you a message asking you to confirm that you indeed do want to subscribe to the e-Newsletter.
Some of my favorite vegetarian-related websites are:
Here are some papers, etc. that I have written on veg-related topics:
Because You Care about the Environment, Maybe You Should Eat Less Meat
Speaking Vegetarian: Toward Nonspeciesist Language
Review of Animal Equality: Language and Liberation