Offers an esoteric collection of medieval Alchemy, Magick and Astrology books from the 16th and 17th Century. Also provides some e-books and articles.

Flaws in concepts and theories of modern physics.

Examines the known facts, fiction and questionable issues involving the USS Eldridge and the Philadelphia Experiment in the fall of 1943.

Astronomy: scientific, archaic, educational, and popular.

an enormous amount of resources pertaining to AI

Links to various pattern recognition and machine learning resources

Philip Spencer is a paranormal investigator and author. Read about his search for Bigfoot and other strange and unexplained events in Anderson County Kentucky.

Perceptions' science; examination of possible alternative forms of intelligent life.

Paranormal ezine covering ghosts, occult and cryptozoology.

UK-based telephone and video mystery shopping services.

Forums and chat room for spiritual advancement and psychic readings covering paranormal.

Covering paranormal topics in occult, paranormal and the afterlife.

Close encounters, paranormal, cryptid, conspiracies, extraterrestrial and other interesting news events.

Pennsylvania-based paranormal researchers and investigators. Site offers case files, articles on equipment usage, and a breakdown of causes for "orbs".

This research group provides articles on paranormal investigation, research projects, and examples of paranormal audio and video from their collection.

About mysteries, UFOs, aliens, and lost civilizations.

Provides an interactive opportunity to learn visually and conceptually about 20th Century science and high-tech devices.

Hierarchical numbering scheme, developed by the American Institute of Physics, used to identify fields and sub-fields of physics.

A page on modern physics, such as quantum mechanics and black holes, and some mathematics.

Diagrams (with captions) appearing in various AIP publications, sorted by category or by date.

Articles, leaning towards a mathematical description, on a wide range of topics in physics.

A tutorial and article driven community. Votes, science news and a discussion forum.

Online archive of Philip J. Klass' Skeptics UFO Newsletter.