RadioCarbon

International journal of radio-isotope dating: Article indexes; sales of subscriptions and back issues.
http://www.radiocarbon.org/

Radiocarbon Web-Info

Extensive information concerning the radiocarbon dating method from Tom Higham, Radiocarbon Laboratory, University of Waikato, New Zealand.
http://www.c14dating.com/

CalPal

The Cologne Radiocarbon Calibration and Paleoclimate Research Package is designed to support research on hominid behavioural response to pleistocene climate change.
http://www.calpal.de/

How Stuff Works: Carbon-14 Dating

Introductory tutorial.
http://www.howstuffworks.com/carbon-14.htm

Canadian Archaeological Radiocarbon Database (CARD)

Compilation of radiocarbon measurements that indicate the ages of archaeological and vertebrate palaeontological sites in North America.
http://www.canadianarchaeology.com/radiocarbon/card/card.htm

Carbon Clock Could Show the Wrong Time

From PhysicsWeb, Carbon dating is a mainstay of geology and archaeology, but an enormous peak discovered in the amount of carbon-14 in the atmosphere between 45 thousand and 11 thousand years ago casts doubt on the biological carbon cycle that underpins t
http://physicsweb.org/article/news/5/5/7/1

CalPal - Online Radiocarbon Calibration

Dates between 50.000 and 1 BP will be calibrated using the calibration curve CalPal2004_SFCP.
http://www.calpal-online.de