The document discusses several free online alternatives to PowerPoint for creating presentations, including Google Docs, Sliderocket, VoiceThread, Prezi, VCasmo, and Vuvox. It also mentions other tools like Slidepoint.net, Present.me, and SmileBox. The document recommends sites like Slideshare.net and AuthorStream for sharing already created presentations and the website Quixey for exploring additional presentation tools.