En inglés

• Messier Picture Gallery - Niels Zagers
• SEDS's Messier Catalog
• 54 of 110 Objects - Rory Barnes
• Listing of Messier objects - Chris Dolan
• Images of Messier Objects - Timothy and Matthew Wachs
• Messier images - Godsell Observatory
• Messier Catalog - Mizar Pages
• Messier Album - Manchester Astronomical Society
• Messier In the Night Sky -Scott Schell
• Messier Picture Gallery - UA Astronomy
• METU's Messier Objects.
• Astronomy's Messier Catalog of Deep-sky Objects.
• Messier Catalog of Deep-sky Objects.
• Drawings of Messier Objects - Bert Decker
• Messier Object Observations - Mel Bartels
• Sketches of all Messier objects - Larry and Suzanne McHenry
• Messier object observations - Chris Randall
• Sketches of all Messier objects - John Blackwell
• Messier object observations - Tim Harris
• Sketches of Messier objects - Jeff Medkeff
• Messier object visibility in a Meade #395 telescope (refractor de 3.5 pulgadas) - Luis Arguelles
• Sketches of Deep Sky Objects - Bert Dekker
• Twelve Month Tour of the Messier Catalog - Tony Cecce
• Messier Object Observations - Hartmut Frommert

En alemán (deutsch)

• Die Deep-Sky Objekte von Messier.
• Messier Object Observations - Dirk Panczyk

En italiano

• Il catalogo di Charles Messier. - Micronet
• Indice Messier.
• Messier Database - Fredi De Maria