Stargazers can view astronomy star charts on sites such as SkyandTelescope.com, download printable star charts at sites such as PBS.org and install star chart software from Stellarium.org. Star charts are also available for purchase at sites such as SkyMaps.com.
Your Sky Tonight offers free star charts on PBS.org that can be viewed from a variety of angles and zoomed to focus on a particular area.You can input a zip code, adjust a few settings and print the chart before heading outdoors to observe the night sky. The chart can be viewed on a computer or printed and customized for use with a pair of binoculars or a small telescope.
Stellarium.org offers a free, open-source star chart software that can be downloaded onto a computer to simulate the night sky. The application is customizable and PC and Mac compatible.