ManyInsurance.com contains listings to browse for various insurance information such as life insurance, automotive insurance, homeowner insurance, mortgage insurance, specialty insurance, dental insurance, bond insurance.
Illinois Department of Insurance
Protects the rights of Illinois citizens in their insurance transactions and monitors the financial solvency of all regulated entities.
http://www.ins.state.il.us/
Google PR:
R. W. Troxell & Company Insurance
As an independent insurance agency, they represent multiple carriers that have programs to meet the needs of any commercial concern. Especialy in property and casualty.