Here is a link for Connect Arizona. This will give you a map of areas that will allow you to connect to free WiFi hotspots, including the Tolleson Public Library.
For those that would like internet access at home, there are low-cost programs available.
For those that don't have WiFi at home, you can use the WiFi at AAEM. The parking spaces that have the best connection are shown below. Click on the picture for a PDF version.