Poll Everywhere is the perfect Audience Response System that lets you "Ask the Audience." The audience votes on your polls using SMS text messages or the web. It allows you to view live, animated charts in PowerPoint and in web pages.
CoveritLive: Live Blogging 2.0 - CoveritLive.com is a web based Live Blogging tool that allows you to broadcast live commentary to your readers. Instead of waiting for tomorrow to read what you have to say, they hear from you live...right now!