in my opinion the PETA is the only animal rights group you need to support. they get into some crazy shit, and they are definitely the biggest voice going for AR and animal welfare. also, dollar for dollar you get the most action for your charity donations than any other AR group.
check out their sites -
http://www.peta.org and
http://www.peta2.org
they have a huge web campaign too that will give you enough reading material to catch up on the state of AR. just check it out, and you'll be hooked.
everyone else
