O'Reilly, sponsors of the etech conference, have set up trackback pings for the various session pages. Good idea (personally, I think any page which can be linked to should have trackback and/or pingback enabled, except for the stupid trackback spam problem). Only problem: it doesn't work. The previous post included links to two session pages. The trackbacks to those session pages returned errors:

Ping 'http://www.oreillynet.com/cgi-bin/tb/tb.cgi/e_sess_5974' failed: HTTP error: 302 Found

Which is just the result in MovableType, the trackback doesn't show up on the page so I'm not sure if it was recorded and I just can't see it, or if something else is going on.

(Yes, I could try debugging it, but not from the conference floor)