Some useful web sites for developing Presentation Skills Leadership Presentation Skills
This site provides tips on organizing a talk, developing it, using effective voice tone and body language and also listening actively to audience questions  Free articles on Public Speaking
This site provides articles on public speaking  Effective Presentation Skills
This site offers information on organizing and preparing a presentation as well as giving impromptu talks   Powerpoint and Presentation Skills Resource Page
This site links to Powerpoint tutorials and provides general tips for using  the Powerpoint program effectively  Toastmasters International
This is the official site of Toastmasters, the international, non-profit organization for people who want to improve their public speaking