+* **<barnowl,\*,\*>**
+
+* **<debathena,\*,\*>** - *High traffic.*
+
+* **<dodona,\*,\*>**
+ * **<dodona-discuss,\*,\*>**
+ * **<dodona-test,\*,\*>**
+
+* **<clockworks,\*,\*>** - Discussion of [[clockworks]].
+
+## Other Useful Classes
+
+These are not actually SIPB-related classes, although many people
+affiliated with SIPB and/or IS&T listen to them. You should not send
+zephyrs to any of these classes unless you have a good reason.
+
+* **<consult,\*,\*>** -
+
+* **<filsrv,\*,\*>** -
+
+* **<3down,\*,\*>** -