They should teach these skills at school, no later than right after kindergarten and with no less stress than any other subject. I'm convinced that's amongst the most important things that could be done to make the world a better place.
The Nizkor list _is_ pretty good, but some of their definitions, and even examples used to discuss them, are not very convincing. Please see the separate reply where I gave three other lists of definitions.
Actually, one of my long time favorite such sites is:
How do you directly deceive the audience via appeal to conservatism?
In that case it wouldn't be deceit as much as it is manipulation. To avoid any political insinuations, I could recast this as appeal to status quo. It's common to argue against new ideas in this way.
How can you question using conservative arguments? They have been used for centuries, and they've served us pretty well. :)
I remember being part of an Academic Games league in high school. One of my favorite games was simply called "Propaganda." Everyone sat in a big room, listened to arguments, and identified the type of rhetorical technique being used. It may sound lame, but it was actually pretty fun and cultivated some useful skills.
Anyway, here's the technique list they used: http://mlagonline.org/Prop_ABCE.pdf [pdf]
and a more detailed but somewhat different list of logical fallacies: http://www.nizkor.org/features/fallacies/