I thought we could save a lot of waffing about and repetition in threads, by making a list of things that are one or more of the following:

• not science
• known not to work
• not proven to work
• just plain nonsense

If genuine scientific evidence arises that transfers an item from "not science" to "science", we must remove it from the list.

The List

• Homeopathy - never reliably shown to be better than placebo. It's water.
• Dowsing - never successfully demonstrated under scientific conditions.
• Chiropractic - you don't have any subluxations. Someone made those up. Like reflexology, a backrub is nice. Having someone "manipulate" your neck, less so. Actually dangerous and has had fatal outcomes.
• Psychics/mediums/clairvoyants/etc. Anyone who claims to be able to do this is either a liar or mentally ill.
• Ayurvedic/Traditional Chinese/etc medicine
• New Age woo - crystal therapy, reflexology (having your feet rubbed is nice. It won't make your spleen better), iridology, cupping, ear candles, etc., etc., et bloody cetera.
• Astrology
• Pyramid power/built by aliens
• Moon landing hoax
• ancient astronauts
• Nazca line nonsense
• Airplane/Conveyor Belt discussions. The executive summary is "it takes off".
• Religion
• Crop Circles (as in made by alien spacecraft rather than bored hippies)
• Perpetual Motion machines (aka "free energy") - the discussions keep going and going, unlike the devices
• 9/11 conspiracy theories
• Ghosts (PH user "Hora")
• UFOs (as in little green men driving spaceships. Flying things we have not identified, ok, therefore IT WOZ THE ALIENS DUNNIT!!!, woo).
• Ley lines
• Feng shui
• Creationism
• Faith healing
• Magnet therapy
• Acupuncture
• Urine therapy
• Sasquatch/Yetis
• Loch Ness Monster
• Electric Superchargers for your car on Ebay
• Expensive speaker cables/interconnects
• Atlantis ( except possibly in connection with undersea archeological finds )
• Anything uttered by Gillian Keith
• Any scientific 'evidence' quoted by a politician or their spokesmen
• Dream analysis

Useful resources

For medical stuff: http://www.cochrane.org

For disproving urban legends: http://www.snopes.com

For everything else: www.wikipedia.com