http://videos.webpronews.com Chris Winfield of 10e20 interviewed with Webpronews to discuss Twitter. To the surprise of many, his presentation at PubCon South was done via Twitter. Chris asked 4 questions, all related to the use of Twiitter, and within an hour, he had received about 165 tweets. Chris explains how his response to the session illustrates some of the power and potential of Twitter for engaging an audience.