Sky Maps and Atlases

Your Sky - Online planetarium gives three ways to view the sky and produce free sky maps.
http://space.about.com/library/weekly/blskymaps.htm

WikiSky - Provides an online interactive system. Includes articles, gallery, forum, and FAQ.
http://www.wikisky.org/

Star Maps - An ability to generate for any city.
http://starmap.causeway.co.uk/

SolStation - On-line interactive 3D maps including software and support.
http://www.solstation.com

Neave Planetarium - Virtual planetarium customizable by location (latitude and longitude) and time of day. Requires Flash.
http://www.neave.com/planetarium/

The Dome of the Sky - Online planetarium showing views of the stars and constellations at different latitudes and different dates.
http://domeofthesky.com/foyer.html

The Constellations and their Stars - Listings with information, images, sky charts, references, resources, and links.
http://www.astro.wisc.edu/~dolan/constellations/

Solar System Simulator - Collection of planetary and star maps.
http://maps.jpl.nasa.gov/

SkyMaps - Maps of the night sky for northern and southern hemispheres, designed to be printed and used, and updated each month.
http://skymaps.com/

Lunaria Lunar Almanac Sky Maps - Maps and tables designed for seven U.S. cities and updated weekly.
http://www.theskytonight.com/localsky.htm

3-D Starmaps - An attempt to assist science fiction fans and authors of science fiction novels who lack the knowledge to construct maps.
http://www.projectrho.com/starmap.html

Out of This World - The Golden Age of the Celestial Atlas - An exhibition of rare books from the collection of the Linda Hall Library.
http://www.lindahall.org/events_exhib/exhibit/exhibits/stars/index.html

Monthly Sky Maps - Sky charts for every location.
http://astroclub.tau.ac.il/skymaps/monthly/

Star Gazer Guide - View a star map for any date, time and latitude, then click on stars for detailed information.
http://www.outerbody.com/stargazer/

Your Sky - Interactive planetarium that can produce maps for any time and date, viewpoint, and observing location.
http://www.fourmilab.ch/yoursky/

Solar System Live - Interactive Orrery of the web with links to other software.
http://www.fourmilab.ch/solar/

MyStarsLive - MyStars for Windows software to construct for any city.
http://www.relativedata.com/mod.php?mod=showinmain&vsize=1500&page=mystarslive/

NGC891 - Interactive Star Charts - Interactive star charts, with Messier, Caldwell and Herschel 400 objects. Downloadable as Excel spreadsheets or PDF charts.
http://www.ngc891.com