Comets

Comet Observation Home Page
Recent news and observations, ephemerides for current visually observable comets, finder charts and orbital diagrams, images, and information.
http://www.calion.com/astro/nasam/marzo.htm

Comet-Images
Posting of images with discussion of images and equipment.
http://tech.groups.yahoo.com/group/Comet-Images/

Comets
News, estimating brightness, photography, reporting discoveries, and articles.
http://www.skyandtelescope.com/observing/objects/comets/

Notebook of a Comet Hunter
Journal, tools, book list, resources, gallery, FAQs, and log index and statistics.
http://www.skyrover.net/notebook/

Small-Body Orbital Elements
Provides access to orbital elements for numbered asteroids, unnumbered asteroids, and comets with element tables using a custom generator (using the current DASTCOM database) or ASCII files.
http://ssd.jpl.nasa.gov/?sb_elem