Comet Observation Home Page: Recent news and observations, ephemerides for current visually observable comets, finder charts and orbital diagrams, images, and information.
Comet-Images: Posting of images with discussion of images and equipment.
Comets: News, estimating brightness, photography, reporting discoveries, and articles.
Comets for Beginners: An illustrated guide to comets with a table of contents.
Holloway Observatory: Image collection.
Notebook of a Comet Hunter: Journal, tools, book list, resources, gallery, FAQ, and log index and stats.
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.