Illinois Department of Employment Security (IDES)
http://www.ides.state.il.us
Printable IDES forms
http://www.ides.state.il.us/forms/default.asp
IDES Fast Facts for Employers
http://www.ides.state.il.us/pdf/employers/FastFacts.pdf
Unemployment Insurance Handbook (last verified 01/08/2011)
http://www.ides.state.il.us/pdf/pubs/uilaw/handbook.pdf
Illinois Wage Payment and Collection Act
http://www.state.il.us/agency/idol/laws/law115.htm