Chicago History Museum
Encyclopedia of Chicago: Welfare Capitalism
An interesting look at how some businesses in Chicago practiced welfare capitalism, a way to give noncash compensation to workers primarily to stave off unionization, but also to promote a loyalty to the company. Many examples are given.
Other
Kansas Heritage: Pullman Strike, Chicago, 1894
This detailed and informative site explains how the Pullman Strike, which began as a peaceful protest about rent in the company town of Pullman, spread across the country and brought railroad traffic to a halt.