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Calendar and observation calculator - very comprehensive site
Interesting site for those searching for satellites and other 'objects in the sky'.
A Sky mapping program from Switzerland. Go to their site and search for 'Homeplanet' - links for downloading + instructions will be found on the appropriate page.
Site dealing with all details of SkyMap - one of the most comprehensive mapping programs available. The program is availabe in various versions and numerous 'upgrades' are provided. Not free, but extremely powerful
Sky & Telescope observing Almanac
Direct link to the Sky & Telescope interactive sky map and viewing almanac. You can enter your own longitude and latitude coordinates, for a personalised site. Also shows any visible passes of the International Space Station.
Another site that provides you with personalised sky maps in various formats.