* **<sipb-auto,\*,\*>** - *High traffic.* Receives a variety of automatically generated zephyrs, including...
* **<sipb-auto,sipbmp3,\*>** - Activity on [sipbmp3](http://http://sipb.mit.edu/sipbmp3/). *Usually high traffic.*
- * **<sipb-auto,sipb-door,\*>** - See **<sipb-door,\*,\*>** above
+ * **<sipb-auto,sipb-door,\*>** - See **<sipb-door,\*,\*>** above.
* **<sipb-auto,sipb-www,\*>** - Commit logs when changes are pushed to this website.
- * **<sipb-auto,backups,\*>** -
- * **<sipb-auto,nagios.stuff.HTTP,\*>** -
+ * **<sipb-auto,backups,\*>** - Log messages from automated backups of the SIPB AFS cell.
+ * **<sipb-auto,nagios.stuff.HTTP,\*>** - Alerts when SIPB's stuff.mit.edu server goes down.
## Classes for SIPB Projects
* **<scripts,\*,\*>** - If you're interested in getting involved
with [Scripts](http://scripts.mit.edu/), subscribe here to see what
the Scripts team does behind the scenes. *High traffic.*
+
+## Other Useful Classes
+
+These are not SIPB-related classes, although many people affiliated
+with SIPB and/or IS&T listen to them. In general, you should not send zephyrs to
+any of these classes.
+
+* **<consult,\*,\*>**
+
+* **<filsrv,\*,\*>**
+
+* **<3down,\*,\*>**