Leo Laporte (leoville.com) has been a radio personality for a long time on his current Tech Radio show 'Leo Laporte - The Tech Guy' which airs on radio every week. When he is normally recording the radio show at 11-2 PST on Satudays and Sundays, he also is taking on a new feat by streaming his the recording of his radio show in live video.
His Live video is being served by Stickam, and has reached up to 3,000 users without completely lagging out. He is also taking a new view to taking questions on his radio show by allowing listeners to twitter messages to his twitter account (leolaporte). Besides that he also reads the Stickam chat that is conviently located right below the Stickam Screen at twitlive.tv. Along with that he has his own IRC chat at http://irc.dslextreme.com.
All of these things greatly increase the communication between him and his viewers that allow his to keep this great internet conversation going. A conversation that basically involves everyone that has access to the internet and has something to say. And it is easy to join this conversation! There are so many great sites like Twitter, Blogger, Facebook, Pownce and several others that allow you make your own content, and put your input into the grand conversation of Technology.