| List name | Post address | Description |
|---|---|---|
| PASPECLIB | paspeclib@hslc.org | Commonwealth of Pennsylvania Special Libraries |
| PASYS | pasys@hslc.org | Commonwealth of Pennsylvania System Libraries |
| PAYOUTH | payouth@hslc.org | Office of Commonwealth Libraries: PA YOUTH |
| POWERLibraryNews | powerlibrarynews@hslc.org | |
| PSLAN | pslan@hslc.org | Pennsylvania School Library Advocates Network |
| SCANPA-PROJECT | scanpa-project@hslc.org | |
| SCHOOLS | schools@hslc.org | |
| SPARK-CAT | spark-cat@hslc.org | Membership is open to users of the SPARK ILS who are interested in cataloging. |
| SPARK-CIRC | spark-circ@hslc.org | |
| SPARK-ILL | spark-ill@hslc.org |