Thinktwice Global Vaccine Institute (lots of good resources) — A good list of resources; global pro-choice vaccine groups books, tapes and videos from around the world http://www.thinktwice.com/
World Natural Health Organization - many health issues including vaccination http://www.wnho.net/
Vaccination: Gary Null's Action File — The "TOPICS" section of the side bar has links to various items. The second topic in this section "Questionable Health Practises" is where information about vaccines is located. http://www.gnhealth.com/articles/index.php