Advanced Public Speaking Institute
   Large collection of free articles on presentation skills, covering both very basic topics and more advanced issues such as audience participation.
   http://www.public-speaking.org/

Clean the Wax From Your Words
   Tips on constructing a good speech.
   http://www.ecglink.com/newsletter/waxwords.html

Effective Speech Writing
   Techniques for writing an effective speech, including choosing a theme, including quotes and other resources, effective closings.
   http://7-12educators.about.com/education/7-12educators/library/weekly/aa050900a.htm

Presentation Zen
   Garr Reynolds' blog on issues related to professional presentation design.
   http://presentationzen.blogs.com/

So You Wanna Deliver an Effective Speech?
   Breezy article goes through the basics of preparing and delivering a speech, with some interesting thoughts on audience and nervousness. Printer-friendly version included.
   http://www.soyouwanna.com/site/syws/speaking/speaking.html

SpeechTips.com
   A short, basic guide to speech writing techniques, from a company that sells special occasion speeches.
   http://www.speechtips.com/