Secrets of Deep-Sky Observing -- Pointers observers should know includes sky brightness, dark adaptation, averted vision, high power, capturing color, & other tips. Visit

The National Deep Sky Observers Society -- Contains information, challenges, galaxy clusters, globular clusters, open star clusters, naked eye observations, observing planetary nebulae, the Milky Way, & star hopping. Visit

The Searchable Universe -- Celestial object catalogs providing links to information. Visit

Messier45 -- Observing guide, articles, Messier Gallery, Herschel 400 & Deep Sky Browser which lets you search deep sky objects & view maps & images of over 600,000 objects. Visit

Arp's Catalog Of Peculiar Galaxies -- Summarizes catalog of 338 views. Visit

Bangkok Deep-Sky Objects Observing -- Contains observations, sketches, and information. Visit

Deep Sky Collections & Catalogs -- Links & observing lists. Visit

Deepsky Observer's Companion -- Tutorials, chart index, discussions, certificates, and resources. Visit

Challenging Observing Projects for Amateur Astronomers -- Includes 100 peculiar galaxies, off the beaten path, observing galaxy clusters, the Abell planetaries, and the ultimate observing list with images. Visit

A CCD Tour of the Universe -- Includes deep sky objects & solar system CCD galleries, techniques & resources, and equipment. Visit

NetAstro Catalog -- The Internet Amateur Astronomers Catalog (IAAC), a mailing list for deep sky observers of all levels. Visit

Visual Deep Sky Observing -- Galleries of sketches, legend, projects, publications, and links. Visit

Messier Marathon -- Includes instructions, biography, dates, timeline, posters, NASA tv, & links & information. Visit

Deep Sky - Sketching & Observing -- Gallery of sketches, links, and sketches upload area.. Visit

Iiro's DeepSky Sketches -- General information, astronomical pictures, sketches, observation reports, objects, and telescope information. Visit

Deep Sky Observing -- Deep sky object types & classifications. Clear? Includes a Messier interactive map, pictures, constellations & observation guide. Visit

Deepsky Observer's Companion -- Tutorials, chart index, discussions, certificates, and resources. Visit

Drawings of Astronomical Objects -- Collection of deep-sky & solar system objects. Visit