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*.
+* **<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,\*,\*>** - Receives a variety of automatically generated zephyrs, including...
- * **<sipb-auto,sipbmp3,\*>** - Activity on [sipbmp3](http://http://sipb.mit.edu/sipbmp3/)
- * **<sipb-auto,sipb-door,\*>** - See **<sipb-door,\*,\*>** above
+* **<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-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](http://stuff.mit.edu) server goes down.
-# SIPB Projects
+## Classes for SIPB Projects
In general, you should only sub to these classes *if and only if*
you're interested in helping with a specific project.
-* *<scripts,\*,\*>** - If you're interested in getting involved
+* **<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.
+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,\*,\*>** -