• Life after death by PowerPoint 2010 by Don McMillan
• PowerPoint Is Evil
  
• PowerPoint Does Rocket Science--and Better Techniques for Technical Reports
• The Level of Discourse Continues to Slide
• No More Bullet Points, No More Clip Art
• PowerPoint isn't evil if you learn how to use it.
• The "Lessig Method" of presentation

Alternatives to PowerPoint -  Presentation tools

• Prezi
• Google docs presentations
• OpenOffice.org Impress
• Thinkfree Show
• Zoho Show
  
• Google Picasa
• Apple Keynote

There are many other software applications that can be used for presentations and you can find a listing here.