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Once you create a GIS map, you must find a way to share this information with others. Online mapping is increasing in popularity because the information is so easy to access and modify. Some of the more complex computergenerated mapping programs are interactive, meaning that you can explore alternatives and ask what-if questions in real time as part of a public meeting. Another advantage of using the Internet is that maps can be developed by anyone with Internet access.

Despite the advantages of online mapping, there's something reassuring about paper maps. You can touch them, draw on them with markers, and roll them up and take them home with you. One big advantage of paper maps over online maps is that you can see the entire map at once.

Software for Map Making

GIS packages vary considerably, from those capable of displaying simple maps from geospatial data to more complex GIS programs that have more advanced relational database and mapping capabilities. Most of the top GIS programs have tools for creating and printing highquality maps. Some of these tools are built into the program, some are extensions that expand the program's capabilities, and some are stand-alone programs that address specific needs.

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