Ghosts and Hauntings — General
The Shadowlands Ghosts and Hauntings — Dave Juliano’s site is just about the only one left out there as old as mine. Thousands of stories and tons of info.
http://ghoststudy.com/ features a large photo gallery as well as active forums.
The Skeptic’s Dictionary provides a skeptical overview of the subject of spirits.
Reddit’s Ghosts and the Paranormal is good for several hours’ worth of entertainment.
About.com Ghosts and Hauntings — A clearinghouse of information.
Unexplained Mysteries Ghosts & Hauntings contains a feed of news articles about ghosts.
Unmuseum: The Science of Ghosts and Hauntings — A lengthy article reviewing the rather scant scientific research done on ghosts.
True Ghost Stories
http://www.yourghoststories.com/ — Over 12,000 stories.
Archive X — One of the oldest true stories archives on the web.
The Moonlit Road — Focuses on stories of the Southern U.S.
http://www.true-ghost-stories.com/ — A large set of personal true stories.
http://www.trueghosttales.com/ — True stories in a blog format.
Paranormal Stories Blog — True stories and many articles about publicly accessible haunted places.
Haunted Places Index — A service of The Shadowlands.
http://www.haunted-places.com/ — Various haunted places around the United States.
Ghost Mysteries — Numerous message boards on ghostly topics.
Skeptics and Science
Worst Paranormal — Exposing false paranormal claims & other unethical practices.
The Skeptics Society & Skeptics Magazine — Examining extraordinary claims & promoting science.
The Skeptic’s Dictionary — Exploring strange beliefs, amusing deceptions, & dangerous delusions.
The Virtual Skeptics — A series of YouTube episodes.
The Skeptic (UK) — Pursuing truth through reason and evidence.