Using ArcGIS 10 and Census to interpolate the population within a radius of a location.
This tutorial will show you how to use areal interpolation to calculate the number of people living within a certain radius of a location. In this demo I use airports located in Maricopa County, Arizona.
Using ArcMap 10 to join Excel data with a shapefile
This video uses the join method to add user created data from an Excel file to a shapefile of airport locations.
Opening and looking at Census shapefiles on QGIS
Using the Open Source QGIS program to open and look at Shapefiles.