I cannot tell helpful Twitter has been to me in the past 10 months as a research tool for teaching and technology. I just found "Twhistory" on Twitter and here is their website. It is a site that is devoted to teaching history on the Internet (not unlike this site!). Obviously one of the items they like to do is to re-enact events using Twitter. One of the items I found on the site is Prezi presentation (also above) of creating historical re-enactments on the web. Prezi is a type of PowerPoint presentation on steroids. It is a great way for students to present topics. Press the arrow button and be impressed!