All of these are clairvoyance tests, unless otherwise indicated.
Web Telepathy
A telepathy test using 3 photographs, one of them being the target.
I tried being a sender but was unable to decide whether I was actually paired with a receiver.
It appears to be written in Perl with ~8 second refresh rate.
ESP Trainer
A test using 4 images by Michael Daniels PhD, Applied Psychology at Liverpool John Moores University.
It has both telepathy and clairvoyance modes, and is written in Javascript.
Hexatron Psychic Trainer
- Improve your psychic powers.
A test using Zener cards, with neat opening shutters.
It is a Java applet.
Test Your ESP
A 5-trial test using Zener cards, with report at the end.
It is written in Perl.
Test Your ESP
It appears to be a precognition test. It uses radio buttons, and tracks results using cookies.
References
Blackmore, Susan and Adam Hart-Davis.
Test Your Psychic Powers.
Sterling Publishing Company.
159 pages.
1995.
ten tests, from Telepathy to Astrology.
Gardner, Martin.
"Targ's ESP Teaching Machine".
Scientific American.
October, 1975.
discusses Russell Targ's machine and others.
Gardner, Martin.
book review of Charles Tart's Learning to Use Extrasensory Perception.
New York Review of Books.
July 14, 1977.
discusses experimental controls in Tart's ESP tests.
Gardner, Martin.
Science : Good, Bad and Bogus.
Prometheus Books.
412 pages.
1989.
reprints the above two articles.
Hansel, C.E.M..
ESP and Parapsychology: A Critical Re-Evaluation.
Prometheus Books.
1980.
Targ, Russel and Harold Puthoff .
Mind-Reach : Scientists Look at Psychic Ability.
1976.
Tart, Charles.
Learning to Use Extrasensory Perception.
University of Chicago Press.
1976.
results of experiments using Tart's "Ten Choice Trainer" machine