The Amityville Horror house
Although they had nothing really to do with this story they did fight claims that it was a hoax which increased the medias attention.
People magazine had this to say about a trial that the Warrens were involved in. The incident is called the Connecticut Demon Murder.
This is a book written by the Warrens about a werewolf demon they exorcised
"The Haunted" is based on the Smurl family that the Warrens said were living with 3 spirits and a demon.
This is the Smurl Family house
Another film inspired by a Warren story
"The Conjuring" is about the Warrens visit to the Perron family farm house.
Here is a 45min video of Andrea Perron (The real person) revisiting her farm.
This is a "Paper Conjuring".
Here's a cool prank set up to advertise "The Conjuring"