Workshop Topics

SlideShare

Pro: Easy learning curve, comments, embeds easily, can add audio, publish to web, live video conferencing
Con: audio can be tricky to add, small size can make slides hard to read

Google Presentations

Pro: Easy to learn, chat with co-editors in real time, embeds easily, publish to web
Con: No Audio, upload/download feature is not great

Blogger

Pro: Easy to learn and modify, can incorporate other tools learned in workshop, hyperlinks and comments are easy to add
Con: Small text (modify through browser)

Prezi

Pro: non-linear, visual
Con: more difficult to learn, "dizzy" transitions

Pick Your Poison

Many of these tools follow the standard Web 2.0 practice of a free version or a free trial with additional features available for a fee.