class's typical modes of behavior. If you jump right in, you might
risk accidentally offending someone.
-* **<sipb,\*,\*>** - The general class for SIPB members and prospectives. General discussion. It's considered polite to always use an instance when sending to **-c sipb**. *High traffic.*
+* **<sipb,\*,\*>** - The archetypal zephyr class for SIPB
+members and prospectives. Features general discussion about the SIPB,
+from brainstorming about projects to random bits of humor. It's
+considered polite to always use an instance when sending to **-c
+sipb**. *High traffic.*
* **<sipb-door,\*,\*>** - Receives a zephyr whenever SIPB's office door opens or closes. Great way to keep track of whether the [[office]] is open or not.
* **<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-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 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,\*,\*>** -