| vernonhills.org | IMAUG - Illinois Municipal ArcGis User Group |
| toi.org | Township Officials of Illinois |
| niu.edu | Illinois Municipal Review |
| iml.org | IML - Illinois Municipal League |
| ilcma.org | ILCMA - Illinois City/County Management Association |
| il-ccao.org | CCAO - Illinois Chief County Assessment Officers |
| igfoa.org | IGFOA - Illinois Government Finance Officers Association |
| iamma.org | IAMMA - Illinois Association of Municipal Management Assistants |
| iaceng.org | IACE - Illinois Association of County Engineers |
| surs.com | State Universities Retirement System of Illinois |
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