I have organized this list of persuasive techniques into categories that help students understand and remember. There are dozens of techniques listed, applicable to speech or persuasive writing. These can be used as a companion to any discussion of persuasion or propaganda, although the document was developed with Animal Farm in mind -- students are asked to identify these elements in Old Major's speech. This is a Word document, so you can adjust as necessary for your needs.
The second page has a handy list of advertising and propaganda techniques, then another list of elements useful to anyone planning a persuasive speech, from identifying the purpose and audience to various qualities of a speaking voice that can be persuasive.
Techniques in Persuasion by Adam Steinberg is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License