I find it very, very useful to be able to identify derailment -- when other people are doing it to me, when I'm tempted to do it to other people, or when I say something and someone tells me to stop derailing.
Here are some excellent resources on derailment:
- First and foremost, The Geek Feminism Wiki's entry on derailment: http://geekfeminism.wikia.com/wiki/Derailment
- Piranha's Derailment Bingo: http://piranha.dreamwidth.org/445505.html
- Derailing for Dummies: http://birdofparadox.wordpress.com/derailing-for-dummies-google-cache-reconstruction/
Enjoy. (Some of them are pretty funny. Wait, humor -- ?!)