BCal - Online Bayesian radiocarbon calibration tool (Developed at the School of History and Archaeology, Cardiff University, this allows users to obtain calibrated dates on data sets entered via a Web browser.)

http://bcal.shef.ac.uk/

Calib 6.0 : radiocarbon calibration program (University of Washington, Quaternary Isotope Laboratory and Queen's University of Belfast). You can download the program to use it in your lab, or you can use the online radiocarbon calibration program. The downloadable version 6.0 is for MS Windows and Macintosh.

http://calib.qub.ac.uk/calib/

CalPal download - Cologne radiocarbon CALibration and PALaeoclimate package (Designed for research on glacial C-14 age conversion)

=> CalPal download : http://download.calpal.de/calpal-download/ (full program to use on your computer)

=> CalPal Online: http://www.calpal-online.de/ (fast and easy to use, single date calibration, dates between 50.000 and
     1 BP will be calibrated using the calibration curve CalPal2007_HULU)

OxCal v.4 calibration program (The OxCal program is intended to provide radiocarbon calibration and analysis of archaeological and environmental stratigraphy. The program runs under Windows and Mac)

http://c14.arch.ox.ac.uk/embed.php?File=oxcal.html

14C Near Eastern Radiocarbon Context Database (Epipalaeolithic, Pre Pottery Neolithic, Pottery Neolithic, and Chalcolithic sites in the Near East and adjacent regions)

http://context-database.uni-koeln.de/

Archaeological Site Index to Radiocarbon Dates from Great Britain and Ireland

http://www.britarch.ac.uk/info/c14.html

Banque de données des dates radiocarbones de Lyon pour l'Europe et le Proche-Orient

http://www.archeometrie.mom.fr/banadora/

Canadian Archaeological Radiocarbon Database (the main CARD database: over 6000 dates of archaeological and vertebrate palaeontological sites in Canada) (in english and in french)

http://www.canadianarchaeology.ca/

New Zealand archaeological radiocarbon database

http://www.waikato.ac.nz/cgi-bin/nzcd/search.pl

Online 14C databases (does not have all the 14C labs...! e.g. Lyon lab is not there)

http://www.radiocarbon.org/Info/index.html

Oxford Radiocarbon Accelerator Unit

http://c14.arch.ox.ac.uk/

RADON - Radiokarbondaten online (radiocarbon database for Neolithic and Early Bronze Age data sets from Germany, Switzerland, the Netherlands, Denmark and adjacent regions - is truly a zip file to be downloaded with some 2000 14C dates +/- up to date to the year 2000)

Radiocarbon dating labs :

Radiocarbon labs around the world

http://www.radiocarbon.org/Info/index.html

Methods : click here

http://www.archeodroit.net/anthro/Contents/dates.html