An interesting article that discusses two papers that analysed websites regarding vaccination information...
Immunisation gets bad rap on internet › News in Science (ABC Science)

The researchers also used the Google search engine for the term 'vaccination' until they found 100 'anti' sites, each of which was then examined. They concluded that these sites attempted to present themselves as legitimate, scientifically credible authorities, often using implied official status and extensively 'referencing' their claims to imply there is a mass of data on the dangers of vaccination.
On checking the references, the researchers found that they were dominated by self-published works on the dangers of vaccination. Referencing was frequently incomplete and included letters to the editors of newspapers and television interviews, usually authored by the same small pool of writers.
"It is virtually inevitable that anyone searching for vaccination information in the internet will quickly encounter florid anti-vaccination material," they write. "With many such sites masquerading as official scientific sites, some web users may not question the veracity of such material."
I can see (and saw from the moment I joined this thread) that it is extremely difficult to be educated on the issue if one doesn't understand the material they are reading. It's very easy to present a webpage as scientific & professional, when in fact having no credentials of relevance at all. This is my sole issue with this entire thread.

Yes, I am certain many of you have seen dominantly normal children 'change' after vaccinations & become Autistic to varying degrees. But there is also a large portion of people not represented on this thread (and indeed forum) that have seen children suffer severely or fatally from infection against the diseases that can be vaccinated against. Don't forget those facts - the diseases may kill a child, or permanently damage them, at a much higher risk rate than vaccination may damage them. That's why vaccines were invented in the first place. I doubt any of you know someone with disability from polio these days. Travel to a third-world country & you may just see that. Small pox - the last outbreak was in 1972. 8 years before I was born. That killer disease was responsible for one third of all blindness in Europe in the 18th century, and killed over 80% of the children it infected. Small pox was declared erdicated by the WHO in december 1979 through extensive vaccination programs in the 19th & 20th centuries. I can happily say I am extremely pleased that myself & my family will NEVER be at risk from blindness & limb deformity from this particular disease. And one day, I would like to see other diseases added to lonely list of eradicated diseases.

Again: your choice is your choice, but critically analyse what you read & research by checking those references - ensuring the references are numerous, current (younger than 10-15 years), from a broad variety of authors, and are pulished credible, peer-reviewed journals (not blogs, not letter to the editor, not websites). And are not solely emotive & anecdotal. Sad stories are pulling... but are definitely not the majority.