is free cloud-based presentation software described as having “the biggest impact on business presentation tools since Microsoft’s PowerPoint.” Prezi resembles a virtual blackboard used by millions of educators and students worldwide, with more than 27 million users in more than 190 countries, including millions of teachers and students.

For more on how this software can play an important role in the classroom, please read “How to lecture like Steve Jobs (or Ashton Kutcher).”

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