Official Amityville Village Homepage
Official site for the town of Amityville - mentions the crimes and denies the haunting's validity. Claims the Lutz's were interested in profiteering off the murders of the DeFeo's (go to "village info < history" for insight into the murder).

About.com's Horror Page FAQ about Amityville
Some general FAQ's about The Amityville Murders and Haunting.

Court TV's report
Contains history of the DeFeo murders and info with photos and bibliography.

Wikipedia entry on the Amityville Horror
Online encyclopedia entry - Wikipedia.com

BBC Amityville Horror Article
BBC's (British Broadcasting Company) article about the Amityville horror, links to further reading at the bottom with overview of the case.