| trou.org | The Rest of Us |
| isoc-chicago.org | ISOC Chicago |
| isaca-chicago.org | ISACA Chicago - Information Systems Audit and Control Association |
| icca-chicago.org | Independent Computer Consultants Association (ICCA), Chicago Chapter |
| cqaa.org | Chicago Quality Assurance Association |
| cpsr.org | Computer Professionals for Social Responsibility (CPSR), Chicago Chapter |
| chicagowireless.org | Chicago Wireless Developer User Group |
| cccpa.org | Chicago Chinese Computing Professional Association |
| bdpa-chicago.org | BDPA, Chicago Chapter |
| acm.org | ACM Chicago |
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