What would be some good sources to look for these things: rhetorical devices, examples of bias, fallacies, or faulty reasoning, argument good/bad, valid/invalid, or strong/weak and non-factual issues addressed, moral, legal or aesthetic reasoning.

Rhetorical devices
http://www.uky.edu/AS/Classics/rhetoric.html

Fallacies
http://www.nizkor.org/features/fallacies/
http://www.logicalfallacies.info/

Types of Argument
http://papyr.com/hbp/logic3.htm
http://www.umuc.edu/prog/ugp/ewp_writingcenter/writinggde/chapter8/chapter8-02.shtml

Reasoning:
http://en.wikipedia.org/wiki/Reasoning