Reference links for GIS mapping discussed in the lecture today:
Cloud Studio GIS blog: https://datamodelprototype.wordpress.com/tag/qgis/
IIT CoA Data Cloug: http://www.iitcoadatacloud.com/
Factfinder2 – http://factfinder2.census.gov/faces/nav/jsf/pages/searchresults.xhtml?refresh=t
Chicago Data Portal: https://data.cityofchicago.org/