| Unit | Example URL | Initially Implemented | Primary Use | Notes |
| Undergraduate Library & Reference library | http://www.library.uiuc.edu/askus/ | 2007 | external | AIM IM service through the WIMZI (or similar) widgets. |
| History, Philosophy, and Newspaper Library | http://www.library.uiuc.edu/hix/contact.html | 2008 | external | AIM IM service through the WIMZI widget. |
| Education & Social Science Library | http://www.library.uiuc.edu/edx/askalibrarian.htm | ? | external | AIM IM service through the WIMZI widget. |
| Slavic and East European Library | http://www.library.uiuc.edu/spx/srs.htm | ? | external | AIM IM service through the WIMZI widget. |
| Web Technologies & Content Coordination | https://netfiles.uiuc.edu/rslater/www/ | 2008 | external & internal | IM service through Plugoo widget. |
| Various | http://uiuc.libguides.com/content.php?pid=2644 | 2007 | external | WIMZI and similar IM widgets within some libguides |