|Josiah Quincy House in Mass.: Residual Haunting|
Residual energy is basically like a thumbprint of emotions left behind from people who lived or dwelled in a place. Think of it this way, if you built a house and walked through it for the first time, your feelings of excitement would leave an "emotional imprint" in it. If you were proposed to in a house, brought your new dog home, or heard you got into the college you wanted, all of those things would leave an imprint of emotional energy. An imprint, however, cannot communicate with you. It's like static electricity.
The Josiah Quincy House in Massachusetts has residual energy. When I visited I saw ghostly images of horse-drawn carriages pulling up in front of the house, as if coming to a big event. Some event that had a lot of emotional energy- enough to leave a "thumbprint" of energy behind.
Intelligent Haunting - An intelligent haunting is basically the energy of a person, a ghost, lingering in a place that can interact with the living. The ghost can answer questions (on digital recorders), move things, change temperatures in a room when it's trying to manifest, stop a clock, and cause magnetic fields to increase. Ghosts are beings of energy after all.