7 links
British Astronomical Association Comet Section
ast.cam.ac.uk
News, recent observations, observing information and advice.
Comet Section of Germany
fg-kometen.de
News, observations, analyses of current comets, images, archives, links.
The Solar System in Actions: Comets
harmsy.freeuk.com
Basic features and some more information on selected comets.
Views of the Solar System: Comets
solarviews.com
Basic features, data, discoveries, images and sections with specific information on selected comets.
Wikipedia: Comet
en.wikipedia.org
Encyclopedia entry covers physical characteristics, history. List of well-known comets.