Published online by the Chicago History Museum, includes brief articles on the history of organizations, communities, nationalities, and topics in the history of Chicago.

The Chicago Metropolitan Agency for Planning (CMAP) is a comprehensive planning organization. Offers snapshots of all 77 Chicago Community Area (as well as metro area municipalities). Each snapshot is presented in an easy-to-print PDF file.

Quick access to U.S. Census Bureau statistics easily limited to a state, county, city, zip code, etc. Use the "Zip Code" option for the closest approximation to a neighborhood. Clickable maps and links make this data easy to navigate. More details about the data at https://statisticalatlas.com/about